[gcc r13-1927] gcc-changelog: do not run extra deduction

[Martin Liska]

https://gcc.gnu.org/g:c2d074293824cf8d4b24f00d94013124214e6fe5

commit r13-1927-gc2d074293824cf8d4b24f00d94013124214e6fe5
Author: Martin Liska <mliska@suse.cz>
Date:   Tue Aug 2 10:50:07 2022 +0200

    gcc-changelog: do not run extra deduction
    
    Do not deduce changelog for root ChangeLog ('').
    
    contrib/ChangeLog:
    
            * gcc-changelog/git_commit.py: Do not deduce changelog for root ChangeLog.

Diff:
---
 contrib/gcc-changelog/git_commit.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/gcc-changelog/git_commit.py b/contrib/gcc-changelog/git_commit.py
index a6b5ff04f22..7f6ff87ba99 100755
--- a/contrib/gcc-changelog/git_commit.py
+++ b/contrib/gcc-changelog/git_commit.py
@@ -626,7 +626,7 @@ class GitCommit:
 
     def deduce_changelog_locations(self):
         for entry in self.changelog_entries:
-            if not entry.folder:
+            if entry.folder is None:
                 changelog = None
                 for file in entry.files:
                     location = self.get_file_changelog_location(file)