src/usr.bin/fsync/fsync.c, branch releng/9.3

Correct some style nits that I have mistakenly submitted as

2005-01-26T15:17:25Z

suggestions which result in the last revision[*]: - style(9) and sysexits(3) suggests that we use EX_* as exit values, instead of some other values like those returned from a system call as errno. Additionally, follow Ruslan's suggestion about style(9) and other style improvements: - Since open(2) says that it returns -1 on errors, explicitly determine whether it is returning -1 rather than whether the return value is less than zero. - Only set rval when there is no previous error. This distinguishes the first error that occours. - Use exit() in favor of return in main(), this is suggested in old style(9), while the evolve has fade the suggestion. - Add some NOTREACHED comments. - Add blank line after first { because no local variables in usage() Thanks to Ruslan for his tireless explaining of the code standards and knowledge of the history of style(9). [*] Pointy hat to: me Submitted by: ru (with some minor changes) Discussed with: ru, ssouhlal

In case of error, return errno, instead of 1.

2005-01-26T06:39:20Z

Suggested by: delphij Reviewed by: delphij Approved by: grehan (mentor)

- Continue, in case of error.

2005-01-25T14:12:01Z

- Add WARNS?= 6 Submitted by: Liam J. Foy Approved by: stefanf, grehan (mentor)

Consistently use FBSDID

2002-06-30T05:25:07Z

Include missing header files which define functions for which gcc has

2001-06-24T19:41:18Z

builtins (e.g., exit). Submitted by: Mike Barcroft

Typos and spelling fixes.

2000-07-24T20:35:19Z

Submitted by: charnier

Add fsync(8). This becomes useful with the advent of MAP_NOSYNC etc.

2000-07-19T08:38:18Z

Reviewed by: peter