Document the purpose of TestInit

[Ammended with a grammar fix]

diff --git a/t/TestInit.pm b/t/TestInit.pm
index aa76fe1..09097ef 100644 (file)
--- a/t/TestInit.pm
+++ b/t/TestInit.pm
@@ -7,6 +7,9 @@
 #   @INC = '../lib';
 # }
 #
+# Its primary purpose is to clear @INC so core tests don't pick up
+# modules from an installed Perl.
+#
 # t/TEST will use -MTestInit.  You may "use TestInit" in the test
 # programs but it is not required.
 #