0.9.6.40:

0.9.6.40:
	Fix a small pprint performance problem caused by the Unicode work.

        * Allow using SIMPLE-BASE-STRINGs directly as pprint
          suffix/prefix, instead of coercing them to (SIMPLE-ARRAY CHARACTER).
        * OOAOM the idiom used in for specializing a block of code for
          several types of strings.