Wicd 1.7.3 fails to instantiate template lines that have several
variable references.  For instance, the line:

  wep_key$_KEY_INDEX=$_KEY

which is found in in the 'wep-hex' template, expands to these two
lines:

  wep_key0=$_KEY
  wep_key0=123456789ab

This patch fixes that by only emitting the fully substituted line.

Patch by Ludovic Courtès <ludo@gnu.org>.

--- a/wicd/misc.py	2012-11-17 00:07:08 +0000
+++ b/wicd/misc.py	2015-05-09 11:22:37 +0000
@@ -321,11 +321,11 @@ def ParseEncryption(network):
                                 rep_val = '0'
                         if rep_val:
                             line = line.replace("$_%s" % cur_val, str(rep_val))
-                            config_file = ''.join([config_file, line])
                         else:
                             print "Ignoring template line: '%s'" % line
                     else:
                         print "Weird parsing error occurred"
+                config_file = ''.join([config_file, line])
             else:  # Just a regular entry.
                 config_file = ''.join([config_file, line])