xfstests: honor comments in the test group file

There are some spots in the "group" file where test numbers have
groups listed after a '#' character, clearly intending for those
groups to be commented out.  But the way the group list gets
generated that commenting doesn't work, and in fact these tests
explicitly *are* included in such commented-out groups.

This patch fixes that, stripping out all comments (which start
with a '#' character and end with a newline) from the file before
building the set of test numbers for a group.

Signed-off-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

common

@@ -58,9 +58,10 @@ do
     if $group
     then
 	# arg after -g
-	group_list=`sed -n <group -e 's/$/ /' -e "/^[0-9][0-9][0-9].* $r /"'{
-s/ .*//p
-}'`
+       group_list=$(sed -n < group \
+                       -e 's/#.*//' \
+                       -e 's/$/ /' \
+                       -e "/^[0-9][0-9][0-9].* $r /"'{ s/ .*//p }')
 	if [ -z "$group_list" ]
 	then
 	    echo "Group \"$r\" is empty or not defined?"