diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index faeace4..0abfdbc 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -306,7 +306,7 @@
     my $mailmap = {
 	names => {},
 	addresses => {}
-   };
+    };
 
     if (!$email_remove_duplicates) {
 	return $mailmap;
@@ -327,39 +327,39 @@
 	# name1 <mail1> name2 <mail2>
 	# (see man git-shortlog)
 	if (/^(.+)<(.+)>$/) {
-		my $real_name = $1;
-		my $address = $2;
+	    my $real_name = $1;
+	    my $address = $2;
 
-		$real_name =~ s/\s+$//;
-		$mailmap->{names}->{$address} = $real_name;
+	    $real_name =~ s/\s+$//;
+	    $mailmap->{names}->{$address} = $real_name;
 
 	} elsif (/^<([^\s]+)>\s*<([^\s]+)>$/) {
-		my $real_address = $1;
-		my $wrong_address = $2;
+	    my $real_address = $1;
+	    my $wrong_address = $2;
 
-		$mailmap->{addresses}->{$wrong_address} = $real_address;
+	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 
 	} elsif (/^(.+)<([^\s]+)>\s*<([^\s]+)>$/) {
-		my $real_name= $1;
-		my $real_address = $2;
-		my $wrong_address = $3;
+	    my $real_name= $1;
+	    my $real_address = $2;
+	    my $wrong_address = $3;
 
-		$real_name =~ s/\s+$//;
+	    $real_name =~ s/\s+$//;
 
-		$mailmap->{names}->{$wrong_address} = $real_name;
-		$mailmap->{addresses}->{$wrong_address} = $real_address;
+	    $mailmap->{names}->{$wrong_address} = $real_name;
+	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 
 	} elsif (/^(.+)<([^\s]+)>\s*([^\s].*)<([^\s]+)>$/) {
-		my $real_name = $1;
-		my $real_address = $2;
-		my $wrong_name = $3;
-		my $wrong_address = $4;
+	    my $real_name = $1;
+	    my $real_address = $2;
+	    my $wrong_name = $3;
+	    my $wrong_address = $4;
 
-		$real_name =~ s/\s+$//;
-		$wrong_name =~ s/\s+$//;
+	    $real_name =~ s/\s+$//;
+	    $wrong_name =~ s/\s+$//;
 
-		$mailmap->{names}->{format_email($wrong_name,$wrong_address,1)} = $real_name;
-		$mailmap->{addresses}->{format_email($wrong_name,$wrong_address,1)} = $real_address;
+	    $mailmap->{names}->{format_email($wrong_name,$wrong_address,1)} = $real_name;
+	    $mailmap->{addresses}->{format_email($wrong_name,$wrong_address,1)} = $real_address;
 	}
     }
     close($mailmap_file);
@@ -743,30 +743,30 @@
 }
 
 sub top_of_kernel_tree {
-	my ($lk_path) = @_;
+    my ($lk_path) = @_;
 
-	if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
-	    $lk_path .= "/";
-	}
-	if (   (-f "${lk_path}COPYING")
-	    && (-f "${lk_path}CREDITS")
-	    && (-f "${lk_path}Kbuild")
-	    && (-f "${lk_path}MAINTAINERS")
-	    && (-f "${lk_path}Makefile")
-	    && (-f "${lk_path}README")
-	    && (-d "${lk_path}Documentation")
-	    && (-d "${lk_path}arch")
-	    && (-d "${lk_path}include")
-	    && (-d "${lk_path}drivers")
-	    && (-d "${lk_path}fs")
-	    && (-d "${lk_path}init")
-	    && (-d "${lk_path}ipc")
-	    && (-d "${lk_path}kernel")
-	    && (-d "${lk_path}lib")
-	    && (-d "${lk_path}scripts")) {
-		return 1;
-	}
-	return 0;
+    if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
+	$lk_path .= "/";
+    }
+    if (   (-f "${lk_path}COPYING")
+	&& (-f "${lk_path}CREDITS")
+	&& (-f "${lk_path}Kbuild")
+	&& (-f "${lk_path}MAINTAINERS")
+	&& (-f "${lk_path}Makefile")
+	&& (-f "${lk_path}README")
+	&& (-d "${lk_path}Documentation")
+	&& (-d "${lk_path}arch")
+	&& (-d "${lk_path}include")
+	&& (-d "${lk_path}drivers")
+	&& (-d "${lk_path}fs")
+	&& (-d "${lk_path}init")
+	&& (-d "${lk_path}ipc")
+	&& (-d "${lk_path}kernel")
+	&& (-d "${lk_path}lib")
+	&& (-d "${lk_path}scripts")) {
+	return 1;
+    }
+    return 0;
 }
 
 sub parse_email {
@@ -1107,29 +1107,30 @@
 }
 
 sub mailmap_email {
-	my $line = shift;
+    my $line = shift;
 
-	my ($name, $address) = parse_email($line);
-	my $email = format_email($name, $address, 1);
-	my $real_name = $name;
-	my $real_address = $address;
+    my ($name, $address) = parse_email($line);
+    my $email = format_email($name, $address, 1);
+    my $real_name = $name;
+    my $real_address = $address;
 
-	if (exists $mailmap->{names}->{$email} || exists $mailmap->{addresses}->{$email}) {
-		if (exists $mailmap->{names}->{$email}) {
-			$real_name = $mailmap->{names}->{$email};
-		}
-		if (exists $mailmap->{addresses}->{$email}) {
-			$real_address = $mailmap->{addresses}->{$email};
-		}
-	} else {
-		if (exists $mailmap->{names}->{$address}) {
-			$real_name = $mailmap->{names}->{$address};
-		}
-		if (exists $mailmap->{addresses}->{$address}) {
-			$real_address = $mailmap->{addresses}->{$address};
-		}
+    if (exists $mailmap->{names}->{$email} ||
+	exists $mailmap->{addresses}->{$email}) {
+	if (exists $mailmap->{names}->{$email}) {
+	    $real_name = $mailmap->{names}->{$email};
 	}
-	return format_email($real_name, $real_address, 1);
+	if (exists $mailmap->{addresses}->{$email}) {
+	    $real_address = $mailmap->{addresses}->{$email};
+	}
+    } else {
+	if (exists $mailmap->{names}->{$address}) {
+	    $real_name = $mailmap->{names}->{$address};
+	}
+	if (exists $mailmap->{addresses}->{$address}) {
+	    $real_address = $mailmap->{addresses}->{$address};
+	}
+    }
+    return format_email($real_name, $real_address, 1);
 }
 
 sub mailmap {
@@ -1146,18 +1147,17 @@
 }
 
 sub merge_by_realname {
-	my %address_map;
-	my (@emails) = @_;
-	foreach my $email (@emails) {
-		my ($name, $address) = parse_email($email);
-		if (!exists $address_map{$name}) {
-			$address_map{$name} = $address;
-		} else {
-			$address = $address_map{$name};
-			$email = format_email($name,$address,1);
-		}
+    my %address_map;
+    my (@emails) = @_;
+    foreach my $email (@emails) {
+	my ($name, $address) = parse_email($email);
+	if (!exists $address_map{$name}) {
+	    $address_map{$name} = $address;
+	} else {
+	    $address = $address_map{$name};
+	    $email = format_email($name,$address,1);
 	}
-
+    }
 }
 
 sub git_execute_cmd {
@@ -1555,7 +1555,7 @@
 
 Any *'d entry is selected.
 
-If you have git or hg installed, You can choose to summarize the commit
+If you have git or hg installed, you can choose to summarize the commit
 history of files in the patch.  Also, each line of the current file can
 be matched to its commit author and that commits signers with blame.