bug#13099: possible test bug in "tests/df/total-verify.sh"

[Assaf Gordon]

Hello,

(properly reporting a bug I mentioned in another email).

The test "df/total-verify.sh" fails on my system, due to a wrong(?) regex to verify the 
output of "df --total -i -P".

To make a long story short, my "df" produces the following line:
===
$ df --total -i -P
Filesystem                       Inodes   IUsed     IFree IUse% Mounted on
< snip >
//bluearctitan3/foobar                0       0         0     - /media/foobar
===

The filesystem is mounted with fuse/sshfs (not sure if that makes a difference).
The test error is:
===
check-df: invalid input line
: //bluearctitan3/foobar                0       0         0     - /media/foobar
===

The 'bug' is that "check-df" script (in 'total-verify.sh') assumes that there 
are two (2) spaces following the dash, whereas on my system there's only one space.

A possible fix (not sure about the side-effects, though);
====
diff --git a/tests/df/total-verify.sh b/tests/df/total-verify.sh
index 18d215f..c36a7a7 100755
--- a/tests/df/total-verify.sh
+++ b/tests/df/total-verify.sh
@@ -32,7 +32,7 @@ while (<>)
     # /dev/sdc1                  0       0       0    -  /c
     # tmpfs                1536000   12965 1523035    1% /tmp
     # total                5285932  787409 4498523   15% -
-    /^(.*?) +(-?\d+|-) +(-?\d+|-) +(-?\d+|-) +(?:- |[0-9]+%) (.*)$/
+    /^(.*?) +(-?\d+|-) +(-?\d+|-) +(-?\d+|-) +(?:-|[0-9]+%) +(.*)$/
       or die "$0: invalid input line\n: $_";
     if ($1 eq 'total' && $5 eq '-')
       {
====

Regards,
  -gordon