Make sure @INC is modified before 'using' the sshhelp module.

tests/runtests.pl

@@ -56,13 +56,15 @@
 
 # These should be the only variables that might be needed to get edited:
 
+BEGIN {
+    @INC=(@INC, $ENV{'srcdir'}, ".");
+}
+
 use strict;
 #use Time::HiRes qw( gettimeofday );
 #use warnings;
 use Cwd;
 
-@INC=(@INC, $ENV{'srcdir'}, ".");
-
 # Variables and subs imported from sshhelp module
 use sshhelp qw(
     $sshexe