[Git Hooks] Fix hook to ignore submodule projects

Submodule projects are sometimes out of my control, so I shouldn't have
to deal with team identifiers in projects that don't affect my build
process in any meaningful way. The only way to deal with this would be
to fork and modify every project I touch that contains this stuff. No.

Signed-off-by: Christopher Snowhill <[email protected]>

.githooks/pre-commit

@@ -1,7 +1,7 @@
 #!/bin/sh
 
-MATCHES=$(grep -nR --include project.pbxproj -E "(DevelopmentTeam|DEVELOPMENT_TEAM) =" .)
-COUNT=$(echo -n "$MATCHES\c" | grep -cvE '= ""')
+MATCHES=$(git grep -n -E "(DevelopmentTeam|DEVELOPMENT_TEAM) =" .)
+COUNT=$(echo -n "$MATCHES\c" | grep -cvE '(Shared.xcconfig|= "")')
 
 if [ $COUNT -ne 0 ]; then
 	ERRORS=$(echo -n "$MATCHES\c" | grep -vE '= ""')