[bugfix] Decode pdfinfo if it is bytes

Bug: T303731
Change-Id: I62118ef3c58980cb84ded85ff6e8ab0c6db2eb1e
---
M scripts/reflinks.py
1 file changed, 2 insertions(+), 0 deletions(-)

diff --git a/scripts/reflinks.py b/scripts/reflinks.py
index ed54129..6e7aba8 100755
--- a/scripts/reflinks.py
+++ b/scripts/reflinks.py
@@ -522,6 +522,8 @@
             pywikibot.exception()
         else:
             for aline in pdfinfo_out.splitlines():
+                if isinstance(aline, bytes):
+                    aline = aline.decode()
                 if aline.lower().startswith('title'):
                     ref.title = ' '.join(aline.split()[1:])
                     if ref.title:

