bug#64590: Patch: fix gud-go in gdb-mi.el

[Wang Diancheng]

Hi,
document of gud-go says "Start or continue execution.  Use a prefix to
specify arguments." but it always prompts for program arguments
regardless of whether "C-u" is pressed because arg is numeric prefix
here. The attachment is a patch to change gud-go just prompts if
prefix is not 1.

gud-go.patch
Description: Text Data