Fix whitespace handling in read_one_line / write_one/line

Signed-off-by: Martin J. Bligh <mbligh@google.com>

We shouldn't be stripping whitespace, just trailing \n's



git-svn-id: http://test.kernel.org/svn/autotest/trunk@1816 592f7852-d20e-0410-864c-8624ca9c26a4
diff --git a/client/common_lib/utils.py b/client/common_lib/utils.py
index 0d6d109..2d5cb8d 100644
--- a/client/common_lib/utils.py
+++ b/client/common_lib/utils.py
@@ -8,11 +8,11 @@
 
 
 def read_one_line(filename):
-    return open(filename, 'r').readline().strip()
+    return open(filename, 'r').readline().rstrip('\n')
 
 
 def write_one_line(filename, str):
-    open(filename, 'w').write(str.rstrip() + "\n")
+    open(filename, 'w').write(str.rstrip('\n') + '\n')
 
 
 def read_keyval(path):