Fix variable accesses to main() method

The change of the CLI tools to a main() method changes the scope of some
variables. Fix these.

Signed-off-by: Rob Herring <robh@kernel.org>

dtschema/doc_validate.py

@@ -18,6 +18,7 @@ def sigint_handler(signum, frame):
 import glob
 
 line_number = False
+verbose = False
 
 def check_doc(filename):
     ret = 0
@@ -30,7 +31,7 @@ def check_doc(filename):
 
     try:
         for error in sorted(dtsch.iter_errors(), key=lambda e: e.linecol):
-            print(dtschema.format_error(filename, error, verbose=args.verbose), file=sys.stderr)
+            print(dtschema.format_error(filename, error, verbose=verbose), file=sys.stderr)
             ret = 1
     except:
         raise
@@ -42,6 +43,9 @@ def check_doc(filename):
     return ret
 
 def main():
+    global verbose
+    global line_number
+
     ap = argparse.ArgumentParser(fromfile_prefix_chars='@',
         epilog='Arguments can also be passed in a file prefixed with a "@" character.')
     ap.add_argument("yamldt", nargs='*', type=str,
@@ -54,6 +58,7 @@ def main():
     args = ap.parse_args()
 
     line_number=args.line_number
+    verbose = args.verbose
 
     ret = 0
     for f in args.yamldt:

dtschema/dtb_validate.py

@@ -70,7 +70,7 @@ def check_node(self, tree, node, disabled, nodename, fullname, filename):
                 print(dtschema.format_error(filename, error, nodename=nodename, verbose=verbose),
                     file=sys.stderr)
         except RecursionError as e:
-            print(ap.prog + ": recursion error: Check for prior errors in a referenced schema", file=sys.stderr)
+            print(os.path.basename(sys.argv[0]) + ": recursion error: Check for prior errors in a referenced schema", file=sys.stderr)
 
     def check_subtree(self, tree, subtree, disabled, nodename, fullname, filename):
         if nodename.startswith('__'):