Drop support for support.cpan

Drop support for the support.cpan metadata key, since the CPAN RT
instance is going away.  For packages with support.cpan set, if
vcs.github was set and support.github was not, set support.github to
match vcs.github during a docknot update.

Change DocKnot to point to the GitHub issue tracker and make the
same change to the affected test data.

1 files changed, 6 insertions, 8 deletions

diff --git a/README.md b/README.md
index 4b63c49..93defac 100644
--- a/README.md
+++ b/README.md
@@ -127,11 +127,11 @@ The [DocKnot web page](https://www.eyrie.org/~eagle/software/docknot/)
 will always have the current version of this package, the current
 documentation, and pointers to any additional resources.
 
-For bug tracking, use the [CPAN bug
-tracker](https://rt.cpan.org/Dist/Display.html?Name=App-DocKnot).
-However, please be aware that I tend to be extremely busy and work
-projects often take priority.  I'll save your report and get to it as soon
-as I can, but it may take me a couple of months.
+For bug tracking, use the [issue tracker on
+GitHub](https://github.com/rra/docknot/issues).  However, please be aware
+that I tend to be extremely busy and work projects often take priority.
+I'll save your report and get to it as soon as I can, but it may take me a
+couple of months.
 
 ## Source Repository
 
@@ -145,9 +145,7 @@ web](https://git.eyrie.org/?p=devel/docknot.git).
 
 The eyrie.org repository is the canonical one, maintained by the author,
 but using GitHub is probably more convenient for most purposes.  Pull
-requests are gratefully reviewed and normally accepted.  It's probably
-better to use the CPAN bug tracker than GitHub issues, though, to keep all
-Perl module issues in the same place.
+requests are gratefully reviewed and normally accepted.
 
 ## License