tools: make mkssldef.py Python 3 compatible

This patch replaces the usage of `map` in such a way that it will be
compatible with Python 3.

PR-URL: #25584
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

tools/mkssldef.py

@@ -21,13 +21,13 @@
     elif option.startswith('-X'): excludes += option[2:].split(',')
     elif option.startswith('-B'): bases += option[2:].split(',')
 
-  excludes = map(re.compile, excludes)
+  excludes = [re.compile(exclude) for exclude in excludes]
   exported = []
 
   for filename in filenames:
     for line in open(filename).readlines():
       name, _, _, meta, _ = re.split('\s+', line)
-      if any(map(lambda p: p.match(name), excludes)): continue
+      if any(p.match(name) for p in excludes): continue
       meta = meta.split(':')
       assert meta[0] in ('EXIST', 'NOEXIST')
       assert meta[2] in ('FUNCTION', 'VARIABLE')