contrib/mklog: Open files in text mode

Due to the python 3 conversion, files should be opened in text mode,
matching stdin/stdout.

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

	* mklog: Open files in text mode.

From-SVN: r271459

contrib/ChangeLog

 2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>
 
+	* mklog: Open files in text mode.
+
+2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>
+
         * mklog: Convert to Python 3.
 
 2019-05-03  Jakub Jelinek  <jakub@redhat.com>

contrib/mklog

@@ -380,7 +380,7 @@ def main():
   if len(args) == 1 and args[0] == '-':
     input = sys.stdin
   elif len(args) == 1:
-    input = open(args[0], 'rb')
+    input = open(args[0])
   else:
     error("too many arguments; for more details run with -h")
 
@@ -442,7 +442,7 @@ def main():
     shutil.copymode(args[0], tmp)
 
     # Open the temp file, clearing contents.
-    out = open(tmp, 'wb')
+    out = open(tmp, 'w')
   else:
     tmp = None
     out = sys.stdout