Improving pull-request's error messages.
Improving pull-request's error messages.

TomzxForks/gh,modulexcite/gh,henvic/gh,modulexcite/gh,tomzx/gh,dustinryerson/gh,oouyang/gh,dustinryerson/gh,oouyang/gh,TomzxForks/gh,tomzx/gh,henvic/gh