diff --git a/paramiko/pkey.py b/paramiko/pkey.py
index d72bdd2323b2b53529df94ef1bab7c3e5c30163e_cGFyYW1pa28vcGtleS5weQ==..da3278219748a3d163c58b697712d2b6402d7fa6_cGFyYW1pa28vcGtleS5weQ== 100644
--- a/paramiko/pkey.py
+++ b/paramiko/pkey.py
@@ -326,7 +326,7 @@
         lines = f.readlines()
         if not lines:
             raise SSHException("no lines in {} private key file".format(tag))
-            
+
         # find the BEGIN tag
         start = 0
         m = self.BEGIN_TAG.match(lines[start])