Tighten ssh-keygen feature test

terrorobe · snh · commit f5cfb38cb0c2 · 2016-11-13T19:26:42.000-07:00
diff --git a/share/github-backup-utils/ghe-detect-leaked-ssh-keys b/share/github-backup-utils/ghe-detect-leaked-ssh-keys
@@ -40,7 +40,7 @@ if [ -n "$ppid_script" ]; then
 fi
 
 sshkeygen_multiple_hash_formats=false
-if (ssh-keygen --a-dedicated-help-flag-would-be-great 2>&1 | grep 'ssh-keygen -l ' | grep -q -- '-E'); then
+if (ssh-keygen -E 2>&1 | head -1 |  grep -q 'option requires an argument'); then
   sshkeygen_multiple_hash_formats=true
 fi
 
