pfg f81f18e8d3 regex: prevent two improbable signed integer overflows.
In matcher() we used an integer to index nsub of type size_t.
In print() we used an integer to index nstates of type sopno,
typedef'd long.
In both cases the indexes never take negative values.

Match the types to avoid any error.

MFC after:	5 days
2016-04-23 20:45:09 +00:00
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