[PATCH] xfsdump: fix system() error reporting

[Christoph Hellwig]

Positive returns from system need the WEXITSTATUS macro applies to get
the real exit code of the executed command.

Based on analysis in oss BZ #804.


Signed-off-by: Christoph Hellwig <hch at lst.de>

Index: xfsdump-dev/dump/content.c
===================================================================
--- xfsdump-dev.orig/dump/content.c	2009-02-16 11:23:10.361944048 +0100
+++ xfsdump-dev/dump/content.c	2009-02-16 11:23:47.629070808 +0100
@@ -6735,7 +6735,8 @@ save_quotas( char *mntpnt, quota_info_t 
         sts = system( buf );
         if( sts != 0 ) {
             mlog( MLOG_ERROR, _(
-                  "%s failed with exit status: %d\n"), REPQUOTA, sts);
+                  "%s failed with exit status: %d\n"), REPQUOTA,
+		  sts == -1 ? -1 : WEXITSTATUS(sts));
             return BOOL_FALSE;
         }
         if((fd = open( quotainfo->quotapath, O_RDONLY|O_DSYNC)) < 0) {