[compat] Avoid type comparison in compat_ord

NB This isn't actually a compat fn; it should be utils.int_from_int_or_char

youtube_dl/compat.py

@@ -2970,7 +2970,7 @@ def compat_shlex_split(s, comments=False, posix=True):
 
 
 def compat_ord(c):
-    if type(c) is int:
+    if isinstance(c, int):
         return c
     else:
         return ord(c)