Floss: Fix a tiny typo in build.py warning

Missing .format

Bug: None
Test: run build.py --target aabbcc
Tag: #floss

Change-Id: I4957e65fa915409490ece53608374281dd019eae

1 files changed, 1 insertions, 1 deletions

diff --git a/build.py b/build.py
index b121cad667..e4cfd937d4 100755
--- a/build.py
+++ b/build.py
@@ -535,7 +535,7 @@ class HostBuild():
 
         # Validate that the target is valid
         if self.target not in VALID_TARGETS:
-            print('Target {} is not valid. Must be in {}', self.target, VALID_TARGETS)
+            print('Target {} is not valid. Must be in {}'.format(self.target, VALID_TARGETS))
             return
 
         if self.target == 'prepare':