Copy-edit doc strings and comments wrt bignum and fixnum

Don't say that a value is a fixnum if small enough and a bignum
otherwise, because that is now how Lisp integers always work,
and we generally don't expose the fixnum/bignum difference to the user
unless really necessary.

* src/charset.c (Fencode_char):
* src/editfns.c (Fuser_uid, Fuser_real_uid, Fgroup_gid)
(Fgroup_real_gid, Femacs_pid):
* src/font.c (Ffont_variation_glyphs):
* src/process.c (Fprocess_id):
Edit doc strings.
* src/pgtkselect.c:
* src/xselect.c: Edit comments.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/process.c b/src/process.c
index 23479c06194..697249a461b 100644
--- a/src/process.c
+++ b/src/process.c
@@ -1209,8 +1209,8 @@ If PROCESS has not yet exited or died, return 0.  */)
 
 DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0,
        doc: /* Return the process id of PROCESS.
-This is the pid of the external process which PROCESS uses or talks to.
-It is a fixnum if the value is small enough, otherwise a bignum.
+This is the pid of the external process which PROCESS uses or talks to,
+an integer.
 For a network, serial, and pipe connections, this value is nil.  */)
   (register Lisp_Object process)
 {