Fix some typos in ART.

Test: m build-art-host
Test: m cpplint-art
Change-Id: Ifc6ce3d0d645c4a8dca72dd483fc03fc05077130
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index 853c91f..5c561f5 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -1778,7 +1778,7 @@
         cond = X86Condition(condition->GetCondition());
       }
     } else {
-      // Must be a boolean condition, which needs to be compared to 0.
+      // Must be a Boolean condition, which needs to be compared to 0.
       Register cond_reg = locations->InAt(2).AsRegister<Register>();
       __ testl(cond_reg, cond_reg);
     }