Function to grep AndroidManifest.xml files.

(cherry picked from commit 50b61e9e66bad2f8addc425271b41e74babf3a34)

Change-Id: I1998a9d6a05176fc7fc8643c5d1c40e2dd699d4e
diff --git a/envsetup.sh b/envsetup.sh
index a8e7a13..b4bfaa9 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -872,6 +872,11 @@
     for dir in `find . -name .repo -prune -o -name .git -prune -o -name res -type d`; do find $dir -type f -name '*\.xml' -print0 | xargs -0 grep --color -n "$@"; done;
 }
 
+function mangrep()
+{
+    find . -name .repo -prune -o -name .git -prune -o -path ./out -prune -o -type f -name 'AndroidManifest.xml' -print0 | xargs -0 grep --color -n "$@"
+}
+
 case `uname -s` in
     Darwin)
         function mgrep()