From 2e4c02f93e554b6b113c8885a7e30bc9f433e411 Mon Sep 17 00:00:00 2001
From: Piotr Kweclich <piotr.kweclich@unity.pl>
Date: Fri, 22 Mar 2013 11:43:44 +0100
Subject: [PATCH] disabled appending file with garbage when regexp didn't
 match.

---
 library/lineinfile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/library/lineinfile b/library/lineinfile
index b92c0112b3..2be9d83bce 100644
--- a/library/lineinfile
+++ b/library/lineinfile
@@ -184,10 +184,14 @@ def present(module, dest, regexp, line, insertafter, insertbefore, create, backu
     # Add it to the end of the file if requested or
     # if insertafter=/insertbefore didn't match anything
     # (so default behaviour is to add at the end)
-    elif insertafter == 'EOF' or index[1] == -1:
+    elif insertafter == 'EOF':
         lines.append(line + os.linesep)
         msg = 'line added'
         changed = True
+    # Do nothing if regexp didn't match
+    elif index[1] == -1:
+        msg = ''
+        changed = False 
     # insertafter/insertbefore= matched
     else:
         lines.insert(index[1], line + os.linesep)