Merge pull request #4 from Silex/patch-1

Fix invalid use of return value

wait-for-it.sh

@@ -137,14 +137,16 @@ CHILD=${CHILD:-0}
 QUIET=${QUIET:-0}
 
 if [[ $CHILD -gt 0 ]]; then
-    RESULT=$(wait_for)
+    wait_for
+    RESULT=$?
     exit $RESULT
 else
     if [[ $TIMEOUT -gt 0 ]]; then
         wait_for_wrapper
         RESULT=$?
     else
-        RESULT=$(wait_for)
+        wait_for
+        RESULT=$?
     fi
 fi