Ticket #22437: patch-fmt_info.pl.diff

lib/fmt/fmt_info.pl

@@ -142 +142 @@
   close $TMPINFO;
 
   # Change to something useful origin filename given by makeinfo
-  $infotext =~ s/$texifile/$fileinfo/;
+  $infotext =~ s/\Q$texifile\E/$fileinfo/;
 
   # Remove not needed line in resulting info file. Only first match.
   $infotext =~ s/\\input texinfo//;