utils/generate_grammar_tables.py: use spaces for indentation

One part of this file had indented using tabs. This causes newer
versions of python to complain. This changes the indentation to
consistently use four spaces throughout the file, to be consistent
with the rest of the file and the rest of the project.

diff --git a/utils/generate_grammar_tables.py b/utils/generate_grammar_tables.py
index a6faf37..b307554 100755 (executable)
--- a/utils/generate_grammar_tables.py
+++ b/utils/generate_grammar_tables.py
@@ -692,24 +692,24 @@ def main():
                 debuginfo_grammar = json.loads(debuginfo_json_file.read())
                 operand_kinds = grammar['operand_kinds']
                 operand_kinds.extend(debuginfo_grammar['operand_kinds'])
-               if args.core_insts_output is not None:
-                   make_path_to_file(args.core_insts_output)
-                   make_path_to_file(args.operand_kinds_output)
-                   version = '{}_{}'.format(grammar['major_version'],
-                                            grammar['minor_version'])
-                   print(generate_instruction_table(
-                           grammar['instructions'], version),
-                         file=open(args.core_insts_output, 'w'))
-                   print(generate_operand_kind_table(operand_kinds, version),
-                         file=open(args.operand_kinds_output, 'w'))
-               if args.extension_enum_output is not None:
-                   make_path_to_file(args.extension_enum_output)
-                   print(generate_extension_enum(grammar['operand_kinds']),
-                         file=open(args.extension_enum_output, 'w'))
-               if args.enum_string_mapping_output is not None:
-                   make_path_to_file(args.enum_string_mapping_output)
-                   print(generate_all_string_enum_mappings(operand_kinds),
-                         file=open(args.enum_string_mapping_output, 'w'))
+        if args.core_insts_output is not None:
+            make_path_to_file(args.core_insts_output)
+            make_path_to_file(args.operand_kinds_output)
+            version = '{}_{}'.format(grammar['major_version'],
+                         grammar['minor_version'])
+            print(generate_instruction_table(
+                grammar['instructions'], version),
+              file=open(args.core_insts_output, 'w'))
+            print(generate_operand_kind_table(operand_kinds, version),
+              file=open(args.operand_kinds_output, 'w'))
+        if args.extension_enum_output is not None:
+            make_path_to_file(args.extension_enum_output)
+            print(generate_extension_enum(grammar['operand_kinds']),
+              file=open(args.extension_enum_output, 'w'))
+        if args.enum_string_mapping_output is not None:
+            make_path_to_file(args.enum_string_mapping_output)
+            print(generate_all_string_enum_mappings(operand_kinds),
+              file=open(args.enum_string_mapping_output, 'w'))
 
     if args.extinst_glsl_grammar is not None:
         with open(args.extinst_glsl_grammar) as json_file: