Patch to fix end-of-word check in tc-sh.c:parse_reg.

[Hans-Peter Nilsson]

On 30 Jan 2002, Richard Sandiford wrote:

> sh parse_reg() was sometimes checking the wrong character for the end of
> a register name.  Tested on sh-elf, committed as obvious.

No test-case?

(If you really need a rationale, think about the likelihood of
this catching the same bug in the event of a re-write.)

brgds, H-P