lds-gen.py: support both python3 and 2 (issue #520)

lds-gen.py

@@ -24,12 +24,12 @@ if __name__ == '__main__':
         else:
             last_line = line
 
-    print '# Automatically generated by lds-gen.py - DO NOT EDIT'
-    print '{\n global:'
+    print('# Automatically generated by lds-gen.py - DO NOT EDIT')
+    print('{\n global:')
     if len(funcs) == 0:
-        print '    *;'
+        print('    *;')
     else:
         for f in sorted(funcs):
-            print '    %s;' % f
+            print('    %s;' % f)
 
-    print '};'
+    print('};')