Fix unintentional command execution in quickstart.sh (#76)

Signed-off-by: Ryan Jendoubi <[email protected]>

Author: rjendoubi

quickstart.sh

@@ -78,8 +78,8 @@ if pgrep -x "ssh-agent" >/dev/null
 then
     echo "ssh-agent OK"
 else
-    echo "ssh-agent is stopped, please start it by running: eval `ssh-agent -s` "
-    #eval `ssh-agent -s` 
+    echo "ssh-agent is stopped, please start it by running: eval \`ssh-agent -s\` "
+    exit 1
 fi
 
 echo "Checking OS"