674af5d4ca
C99 says that the %15c conversion specifier matches *exactly* 15
characters, so if the process name is shorter than 15 characters,
it is not matched and 0 is returned. Some implementations (such as
glibc) return a match, even with fewer characters than the field
width, but this cannot be assumed.
Instead, use %15[^)], as in upstream commit [0], which matches a
non-empty sequence of characters other than ')'.
[0]
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