vc-static-header-alist

vc-static-header-alist is a variable defined in `vc.el'.
Its value is

(("\\.c\\'" . "\n#ifndef lint\nstatic char vcid[] = \"%s\";\n#endif /* lint */\n"))

Documentation:
Associate static header string templates with file types.
A %s in the template is replaced with the first string associated with
the file's version control type in `vc-BACKEND-header'.

You can customize this variable.