Added reference to another fixed bug

Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>

tcl.spec

@@ -19,6 +19,8 @@ Provides: tcl-tcldict = %{vers}
 Patch0: tcl-8.6.3-autopath.patch
 Patch1: tcl-8.6.3-conf.patch
 Patch2: tcl-8.6.5-hidden.patch
+# Upstream ticket:
+# https://core.tcl.tk/tcl/tktview/7d0db7c388f52de81faf12da332bc97a24f7b9e5
 Patch3: tcl-8.6.5-parallel-make-fix.patch
 
 %if %sdt
@@ -141,6 +143,8 @@ rm -rf %{buildroot}/%{_datadir}/%{name}%{majorver}/ldAix
 * Tue Mar 22 2016 Jaroslav Škarvada <jskarvad@redhat.com> - 1:8.6.5-1
 - New version
   Resolves: rhbz#1313909
+- Fixed parallel make
+  Resolves: rhbz#1304799
 
 * Fri Mar 13 2015 Jaroslav Škarvada <jskarvad@redhat.com> - 1:8.6.4-1
 - New version