Append .dll extension in all cases (spotted by Mike Hearn).
[wine] / dlls / comctl32 / tests /
drwxr-xr-x   ..
-rw-r--r-- 59 .cvsignore
-rw-r--r-- 242 Makefile.in
-rw-r--r-- 2571 dpa.c
-rw-r--r-- 17391 imagelist.c
-rw-r--r-- 8033 subclass.c
-rw-r--r-- 6296 tab.c