fix old support

ShellB3/sb3bin/shellscrape

@@ -91,7 +91,7 @@ def main():
         r=getfunction(content,f,onlyDocumentation=options.documentation,matching=options.matching)
         if r is not None:
             if options.documentation:
-                print("{:>20} {}".format(f,r))
+                print("%20s %s" % (f,r))
             else:
                 print(r)