EU::MakeMaker: reduce clutter on STDERR

Don't output to STDERR the message 'Processing hints file foo',
as STDERR should be reserved for warnings and errors.
Instead, sent it to STDOUT - and even then, only with $Verbose,
as otherwise it appears as spurious output when running t/hints.t

Author: iabyn

lib/ExtUtils/MakeMaker.pm

@@ -1111,7 +1111,7 @@ sub _run_hintfile {
     my($hint_file) = shift;
 
     local($@, $!);
-    warn "Processing hints file $hint_file\n";
+    print "Processing hints file $hint_file\n" if $Verbose;
 
     # Just in case the ./ isn't on the hint file, which File::Spec can
     # often strip off, we bung the curdir into @INC

t/hints.t

@@ -42,7 +42,7 @@ CLOO
 
     $mm->check_hints;
     is( $mm->{CCFLAGS}, 'basset hounds got long ears' );
-    is( $stderr, "Processing hints file $Hint_File\n" );
+    is( $stderr, "" );
 }
 
 
@@ -62,7 +62,6 @@ CLOO
 
     $mm->check_hints;
     is( $stderr, <<OUT, 'hint files produce errors' );
-Processing hints file $Hint_File
 Argh!
 OUT
 }