wp-android-checkstyle.diff

diff --git a/tools/checkstyle.sh b/tools/checkstyle.sh
index 8f536e2..e206727 100755
--- a/tools/checkstyle.sh
+++ b/tools/checkstyle.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
-if [ x"$1" == x ]; then
+if [ -z "$1" ]; then
        checkstyle -c cq-configs/checkstyle/checkstyle.xml  -r src/
 else
        checkstyle -c cq-configs/checkstyle/checkstyle.xml $@
-fi
\ No newline at end of file
+fi
diff --git a/tools/compare-with-develop-style.sh b/tools/compare-with-develop-style.sh
index 02fafeb..512732b 100755
--- a/tools/compare-with-develop-style.sh
+++ b/tools/compare-with-develop-style.sh
@@ -3,7 +3,7 @@
 CONFIG_FILE=cq-configs/checkstyle/checkstyle.xml
 cp $CONFIG_FILE /tmp/checkstyle.xml
 
-if [ x"$1" == x ]; then
+if [ -z "$1" ]; then
        compared_branch=develop
 fi