Show sensible-browser command when running interactively.

gitstats

@@ -1372,6 +1372,11 @@ Default config values:
 		time_end = time.time()
 		exectime_internal = time_end - time_start
 		print 'Execution time %.5f secs, %.5f secs (%.2f %%) in external commands)' % (exectime_internal, exectime_external, (100.0 * exectime_external) / exectime_internal)
+		if sys.stdin.isatty():
+			print 'You may now run:'
+			print
+			print '   sensible-browser \'%s\'' % os.path.join(outputpath, 'index.html').replace("'", "'\\''")
+			print
 
 if __name__=='__main__':
 	g = GitStats()