61d7f128e6
I wanted to write a warning that included two target_pid_to_str calls,
like this:
warning (_("Blabla %s, blabla %s"),
target_pid_to_str (ptid1),
target_pid_to_str (ptid2));
This doesn't work, because target_pid_to_str stores its result in a
static buffer, so my message would show twice the same ptid. Change
target_pid_to_str to return an std::string to avoid this. I don't think
we save much by using a static buffer, but it is more error-prone.
Change-Id: Ie3f649627686b84930529cc5c7c691ccf5d36dc2
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