Avoid running strip on modules if there is no modules directory.

This avoids printing an error message and usage statement when using squisher if no modules
have been produced.

Change-Id: Iadd38518e64f7edf2d4da345143a44970c6f383a
Signed-off-by: Pat Thoyts <patthoyts@gmail.com>
diff --git a/tools/squisher b/tools/squisher
index 3e7b058..61a3663 100755
--- a/tools/squisher
+++ b/tools/squisher
@@ -134,7 +134,8 @@
 rm -rf $REPACK/ota/recovery
 
 # Strip modules
-find $REPACK/ota/system/lib/modules -name "*.ko" -print0 | xargs -0 arm-eabi-strip --strip-unneeded
+[ -d $REPACK/ota/system/lib/modules ] && \
+	find $REPACK/ota/system/lib/modules -name "*.ko" -print0 | xargs -0 arm-eabi-strip --strip-unneeded
 
 # Determine what to name the new signed package
 if [ -z "$CYANOGEN_NIGHTLY" ]; then