When using p4publish with multiple paths listed in the `paths` argument, and the workspace doesn't contain any changes compared to the depot, publish will fail with

Unable to publish workspace: hudson.AbortException: P4JAVA: Error(s):
No file(s) to reconcile.

This seems to be a result of a check in ClientHelper.java

getValidate().check(status, "- no file(s) to reconcile", "instead of", "empty, assuming text", "also opened by");

which apparently should ignore the p4java status "- no file(s) to reconcile" but when reconciling with multiple paths, the message is "No file(s) to reconcile." - this can be easily tested from the command line:

> p4 rec foo/...
foo/... - no file(s) to reconcile.
> p4 rec foo/... bar/...
No file(s) to reconcile.

The attached patch changes the ignore string so that it's recognized in both cases, as the check uses StringUtils.containsIgnoreCase(msg, istring) to compare the message with it.