[Bug other/91048] New: Recent changes to contrib/mklog cause failure

[kelvin.nilsen at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91048

            Bug ID: 91048
           Summary: Recent changes to contrib/mklog cause failure
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: kelvin.nilsen at gmail dot com
  Target Milestone: ---

./contrib/mklog crashes, even on very simple diff files.  Sample traceback
report follows:

./contrib/mklog svn.diffs.7-1-2019 >svn.ChangeLog
Traceback (most recent call last):
 File “./contrib/mklog”, line 470, in <module>
   main()
 File “./contrib/mklog”, line 357, in main
   name, email = read_user_info()
 File “./contrib/mklog”, line 105, in read_user_info
   if cache.match(r’^\s*([a-zA-Z0-9_]+)\s*=\s*(.*?)\s*$’, s):
 File “./contrib/mklog”, line 57, in match
   self.last_match = re.match(p, s) if isinstance(p, str) else p.match(s)
 File “/usr/lib/python3.5/re.py”, line 163, in match
   return _compile(pattern, flags).match(string)
TypeError: cannot use a string pattern on a bytes-like object

I get these problems with any diff file.  In this case, my diff file consists
only of the following:

kelvin@genoa:~/gcc-root/gcc-trunk$ cat svn.diffs.7-1-2019 
Index: gcc/doc/extend.texi
===================================================================
--- gcc/doc/extend.texi (revision 272909)
+++ gcc/doc/extend.texi (working copy)
@@ -5371,6 +5371,8 @@ Kernel functions must have @code{void} return type
 @node PowerPC Function Attributes
 @subsection PowerPC Function Attributes

+kelvin is clowning around here to try to figure out mklog behavior.
+
 These function attributes are supported by the PowerPC back end:

 @table @code