check errors when running mhpath

diff --git a/minc b/minc
index db8cdff..2e93e13 100755 (executable)
--- a/minc
+++ b/minc
@@ -185,7 +185,7 @@ our $folder_sorter = sub { sort_by_list(@_, @folder_sort_list) };
 
 my $mh;
 
-$mh = `mhpath +`;
+$mh = `mhpath +` or die;
 chomp($mh);
 
 $ENV{"MHCONTEXT"} = $mh . '/.minc.context';