mgrep: add output to environment commands

Change-Id: I7a97e00c7ef5ac179333303d89511c2f72cbd100
Signed-off-by: William Roberts <william.c.roberts@intel.com>
diff --git a/envsetup.sh b/envsetup.sh
index 65a536e..62802df 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -15,6 +15,7 @@
 - jgrep:   Greps on all local Java files.
 - resgrep: Greps on all local res/*.xml files.
 - mangrep: Greps on all local AndroidManifest.xml files.
+- mgrep:   Greps on all local Makefiles files.
 - sepgrep: Greps on all local sepolicy files.
 - sgrep:   Greps on all local source files.
 - godir:   Go to the directory containing a file.