gap-system / gap / 11208

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travis-ci

kernel: tweak sysstr.h, IsIdent()

- move #include <ctype.h> from system.h to sysstr.h
- add #include <string.h> to sysstr.h (for strlcpy, strlcat on BSD and macOS)
- IsIdent now also accept digits, by using isalnum() instead of IsAlpha; this
  is sightly more efficient. In a few places were we are using IsIdent, we
  strictly speaking don't want to accept digits; but there, digits never can
  be the input anyway, so all is good
- add a file description comment to the top of sysstr.c and sysstr.h

6 of 6 new or added lines in 3 files covered. (100.0%)

285910 of 337603 relevant lines covered (84.69%)

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