[scripts] Set path in utils/ssh.pl just like in slurm.pl or queue.pl …

…to avoid path problems (kaldi-asr#1379)

egs/wsj/s5/utils/ssh.pl

@@ -161,6 +161,7 @@
     # bash commands.
     print S "set -e\n";  # if any of the later commands fails, we want it to exit.
     print S "cd $cwd\n";
+    print S ". ./path.sh\n";
     print S "mkdir -p $logdir\n";
     print S "time1=\`date +\"%s\"\`\n";
     print S "( echo '#' Running on \`hostname\`\n";