Fix typo that broke cgrep.

Change-Id: Ic87f4bff1ee52a201c197c5664ff2e91648b0b53
diff --git a/envsetup.sh b/envsetup.sh
index 1443760..ebde85c 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -831,7 +831,7 @@
 
 function cgrep()
 {
-    find .a -name .repo -prune -o -name .git -prune -o -type f \( -name '*.c' -o -name '*.cc' -o -name '*.cpp' -o -name '*.h' \) -print0 | xargs -0 grep --color -n "$@"
+    find . -name .repo -prune -o -name .git -prune -o -type f \( -name '*.c' -o -name '*.cc' -o -name '*.cpp' -o -name '*.h' \) -print0 | xargs -0 grep --color -n "$@"
 }
 
 function resgrep()