restructured regression test scripts for awk

qse/regress/awk/lang-001.awk

@@ -1,3 +1,4 @@
-# cannot use function name as a parameter name
+# cannot use function name as a parameter name 
+# unless QSE_AWK_STRICTNAMING is off
 function f(f) { print f; }
 BEGIN { f("hello"); }