[glob2] Annotate SConstruct patch with upstream bug reference

[Petr Machata]

commit c92b69c7d7b8f71f029ef6aa88efbbe966a08bc5
Author: Petr Machata <pmachata at redhat.com>
Date:   Sun Jul 28 19:39:58 2013 +0200

    Annotate SConstruct patch with upstream bug reference

 glob2.spec |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/glob2.spec b/glob2.spec
index f3e910d..b0238b0 100644
--- a/glob2.spec
+++ b/glob2.spec
@@ -12,6 +12,7 @@ Source0:        http://dl.sv.nongnu.org/releases/%{name}/0.9.4/%{name}-%{version
 #Patch0:         glob2-texts.pl.patch
 #Patch2:         glob2-gcc43.patch
 Patch3:         glob2-0.9.4.1-gcc44.patch
+# https://savannah.nongnu.org/bugs/index.php?39593
 Patch4:         glob2_SConstruct.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)