percyliang/brown-cluster — pull request #4 by andrewyates (2013-06-13 21:02:29+00:00)
Title: print --help when --text is missing

Currently wcluster crashes when called with no arguments:
$ ./wcluster
wcluster: wcluster.cc:1046: int main(int, char**): Assertion `file_exists(text_file.c_str())' failed.

This patch makes it print --help instead.