[PATCH] xfsdump: make help printing a little smarter

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

fprintf returns the number of characters printed, we can use this
for the offsetted lines.


Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Index: xfs-cmds/xfsdump/common/main.c
===================================================================
--- xfs-cmds.orig/xfsdump/common/main.c 2008-11-13 18:39:06.000000000 +0100
+++ xfs-cmds/xfsdump/common/main.c      2008-11-13 18:40:43.000000000 +0100
@@ -960,20 +960,12 @@ main( int argc, char *argv[] )
 void
 usage( void )
 {
-       char linebuf[ 200 ];
        int pfxsz;
-       int ps;
+       int ps = 0;
        char *ns = "";
 
-       sprintf( linebuf,
-                _("%s: usage: %s "),
-                progname,
-                basename( progname ));
-       pfxsz = strlen( linebuf );
-       ASSERT( pfxsz < sizeof( linebuf ));
-       ps = 0;
-
-       fprintf( stderr, linebuf );
+       pfxsz = fprintf(stderr, _("%s: usage: %s "),
+                               progname, basename(progname));
 
 #ifdef DUMP
        ULO(_("(dump DMF dualstate files as offline)"), GETOPT_DUMPASOFFLINE );
Index: xfs-cmds/xfsdump/invutil/invutil.c
===================================================================
--- xfs-cmds.orig/xfsdump/invutil/invutil.c     2008-11-13 18:34:44.000000000 
+0100
+++ xfs-cmds/xfsdump/invutil/invutil.c  2008-11-13 18:40:59.000000000 +0100
@@ -1082,18 +1082,12 @@ mmap_n_bytes(int fd, size_t count, bool_
 void
 usage (void)
 {
-    char linebuf[ 200 ];
     int pfxsz;
-    int ps;
+    int ps = 0;
     char *ns = "";
 
-    fprintf( stderr, "%s: %s\n", g_programName, g_programVersion );
-    snprintf( linebuf, sizeof(linebuf), "Usage: %s ", g_programName );
-    pfxsz = strlen( linebuf );
-    assert( pfxsz < sizeof( linebuf ));
-    ps = 0;
-
-    fprintf( stderr, linebuf );
+    fprintf(stderr, "%s: %s\n", g_programName, g_programVersion);
+    pfxsz = fprintf(stderr, "Usage: %s ", g_programName);
 
 #ifdef REVEAL
     ULO( "(output debug information)", GETOPT_DEBUG );