[PATCH] get_maintainer: add --substatus for reporting subsystem status - fix

[Vlastimil Babka <vbabka@xxxxxxx>]

The automatically enabled --substatus can break existing scripts that do
not disable --rolestats. Require that script output goes to a terminal
to enable it automatically.

Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
---
 scripts/get_maintainer.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index cf902417a52c..4414194bedcf 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -317,7 +317,7 @@ $output_rolestats = 1 if ($interactive);
 $output_roles = 1 if ($output_rolestats);
 
 if (!defined $output_substatus) {
-    $output_substatus = $email && $output_roles;
+    $output_substatus = $email && $output_roles && -t STDOUT;
 }
 
 if ($sections || $letters ne "") {
@@ -1086,7 +1086,7 @@ version: $V
     --remove-duplicates => minimize duplicate email names/addresses
     --roles => show roles (role:subsystem, git-signer, list, etc...)
     --rolestats => show roles and statistics (commits/total_commits, %)
-    --substatus => show subsystem status if not Maintained (default: match --roles)"
+    --substatus => show subsystem status if not Maintained (default: match --roles when output is tty)"
     --file-emails => add email addresses found in -f file (default: 0 (off))
     --fixes => for patches, add signatures of commits with 'Fixes: <commit>' (default: 1 (on))
   --scm => print SCM tree(s) if any
-- 
2.48.1