[CentOS] Bug in find command?

I'm going to bugz this if no one tells me I made another brain-damaged
error here. Also, if I can get one confirmation, it'll let me breath
easier. I ran a version searching for ".cmd" and ".c" just trying to
convince myself I'm not *that* brain-damaged.

You'd think after all these years that regex compilation would be pretty
darn stable... Oh! Forgot it was GNU!

Athlon CentOS-4.4 up to date:
$ lsb_release -a
LSB Version:    :core-3.0-ia32:core-3.0-noarch:graphics-3.0-
ia32:graphics-3.0-noarch
Distributor ID: CentOS
Description:    CentOS release 4.4 (Final)
Release:        4.4
Codename:       Final
$ uname -a
Linux wlmlfs08.homegroannetworking 2.6.9-42.0.2.EL #1 Tue Aug 22
23:56:05 CDT 2006 i686 athlon i386 GNU/Linux

$ cat MakeBugReportData
#!/bin/bash
cd /usr/src
rpm -q --file /usr/bin/find
find . | grep -i '\.cmd$' >/tmp/FilesGreppedDotCmd
find . | grep -i '\.c$' >/tmp/FilesGreppedDotC
find . -iname '*.cmd' >/tmp/FilesFoundDotCmd
find . -iname '*.c' >/tmp/FilesFoundDotC
wc -l /tmp/FilesGreppedDotCmd /tmp/FilesFoundDotCmd \
  /tmp/FilesGreppedDotC /tmp/FilesFoundDotC
[wild-bill at wlmlfs08 tmp]$ sh ./MakeBugReportData
findutils-4.1.20-7.el4.1.i386
    88 /tmp/FilesGreppedDotCmd
     0 /tmp/FilesFoundDotCmd
  3582 /tmp/FilesGreppedDotC
  3582 /tmp/FilesFoundDotC
  7252 total

$ head -5 FilesGreppedDotCmd
./kernels/2.6.9-42.0.2.EL-smp-i686/scripts/genksyms/.genksyms.o.cmd
./kernels/2.6.9-42.0.2.EL-smp-i686/scripts/genksyms/.parse.o.cmd
./kernels/2.6.9-42.0.2.EL-smp-i686/scripts/genksyms/.lex.o.cmd
./kernels/2.6.9-42.0.2.EL-smp-i686/scripts/genksyms/.genksyms.cmd
./kernels/2.6.9-42.0.2.EL-smp-i686/scripts/.conmakehash.cmd

TIA
--
Bill