Clean up the vcs ID strings in libc's gen/ directory.

- Move CSRG IDs into __SCCSID().
- When a file has been copied, consistently use 'From: <tag>' for strings
  referencing the version of the source file copied from in the license
  block comment.
- Some of the 'From:' tags were using $FreeBSD$ that was being expanded on
  each checkout.  Fix those to hardcode the FreeBSD tag from the file that
  was copied at the time of the copy.
- When multiple strings are present list them in "chronological" order,
  so CSRG (__SCCSID) before FreeBSD (__FBSDID).  If a file came from
  OtherBSD and contains a CSRG ID from the OtherBSD file, use the order
  CSRG -> OtherBSD -> FreeBSD.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D15831

diff --git a/libc/gen/pw_scan.c b/libc/gen/pw_scan.c
index 7e88a227cf43b6aeef434fd6e7eb2c472d775d33..a7dbdf2cb5b98fd6a866de50c4dca51e1aa55c5e 100644 (file)
--- a/libc/gen/pw_scan.c
+++ b/libc/gen/pw_scan.c
@@ -29,10 +29,8 @@
  * SUCH DAMAGE.
  */
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)pw_scan.c  8.3 (Berkeley) 4/2/94";
-#endif /* LIBC_SCCS and not lint */
 #include <sys/cdefs.h>
+__SCCSID("@(#)pw_scan.c        8.3 (Berkeley) 4/2/94");
 __FBSDID("$FreeBSD$");
 
 /*