t/run/todo.t: Issues number should be in test names

As noted by James Keenan, the issue number is displayed just fine for
these tests while they are TODO, but when they get moved to a permanent
.t (after getting fixed), the number gets lost.

Author: khwilliamson

t/run/todo.t

@@ -26,7 +26,20 @@
 # significant amount of sophistication to use correctly.  It's best to start
 # out, if possible, by avoiding issues that crash the interpreter and need
 # these.
-
+#
+# Each test name should include the GH number.  While still todo, the software
+# displays the number, but after they're fixed, we will move them to a
+# permanent position in an appropriate test file, and the ticket number would
+# get lost.  You could do something like the following:
+#    TODO: {
+#       local $::TODO = "GH #####";
+#       is($got1, $expected1, "your text1 here: GH ####");
+#       is($got2, $expected2, 'your text2 here: GH ####');
+#       ...
+#    }
+#
+# or something else to get the number in the testname.
+#
 # Some domains have infrastructure which may make it easier to add a test
 # there, than to have to set up things here.  These include:
 #