diff --git a/zfs_autobackup/CmdPipe.py b/zfs_autobackup/CmdPipe.py
index da1a789..04680d0 100644
--- a/zfs_autobackup/CmdPipe.py
+++ b/zfs_autobackup/CmdPipe.py
@@ -1,3 +1,9 @@
+# This is the low level process executing stuff.
+# It makes piping multiple process easier.
+# You can specify a handler for each line of stderr output for each item in the pipe.
+# Every item also has its own exitcode handler.
+# There is one stdout handler for the last item in the pipe. This is also called for each line.
+
 import subprocess
 import os
 import select
diff --git a/zfs_autobackup/ZfsAuto.py b/zfs_autobackup/ZfsAuto.py
index f0fe32c..be67e0a 100644
--- a/zfs_autobackup/ZfsAuto.py
+++ b/zfs_autobackup/ZfsAuto.py
@@ -136,7 +136,7 @@ class ZfsAuto(object):
         group=parser.add_argument_group("SSH options")
         group.add_argument('--ssh-config', metavar='CONFIG-FILE', default=None, help='Custom ssh client config')
         group.add_argument('--ssh-source', metavar='USER@HOST', default=None,
-                            help='Source host to get backup from.')
+                            help='Source host to pull backup from.')
         group.add_argument('--ssh-target', metavar='USER@HOST', default=None,
                             help='Target host to push backup to.')