David Spickett 96927bafa4 [lldb] Correct unsigned decimal argument check in memory write
getAsInteger returns false when it succeeds.

Before:
(lldb) memory write 0x00007ffff7dd3000 99 -f "unsigned decimal"
error: '99' is not a valid unsigned decimal string value.

After:
(lldb) memory write 0x00007ffff7dd3000 99 -f "unsigned decimal"
(lldb) memory read 0x00007ffff7dd3000 0x00007ffff7dd3001
0x7ffff7dd3000: 63                                               c
2021-03-17 16:08:54 +00:00
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