Fix perl thinko in commit fed6df4

Report and fix from Vaishnavi Prabakaran

Backpatch to 9.4 like original.

Author: adunstan

src/tools/msvc/vcregress.pl

@@ -90,7 +90,7 @@
 
 exit 3 unless $proc;
 
-&$proc(@_);
+&$proc(@ARGV);
 
 exit 0;