Improve handling of realloc()
Fixes cppcheck warning:
[fslsfonts.c:268]: (error) Common realloc mistake: 'font_list' nulled but not freed upon failure
Uses reallocarray()
if available from either libc or libbsd.
Fixes cppcheck warning:
[fslsfonts.c:268]: (error) Common realloc mistake: 'font_list' nulled but not freed upon failure
Uses reallocarray()
if available from either libc or libbsd.