Merge pull request #86 from garethrandall/master

Avoid sending a newline character which confuses servers.

Author: Douglas Gibbons

wait-for-it.sh

@@ -36,7 +36,7 @@ wait_for()
             nc -z $WAITFORIT_HOST $WAITFORIT_PORT
             WAITFORIT_result=$?
         else
-            (echo > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
+            (echo -n > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
             WAITFORIT_result=$?
         fi
         if [[ $WAITFORIT_result -eq 0 ]]; then