chore, update copyright years

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
hygiene, if not defined at all, set PATH_MAX to 256

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, refactor the realloc code in prepend_path()

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
chore, start out with a really big cushion of memory in prepend_path()

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
hygiene, start out size_t for-loops with unsigned values

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
cosmetics, shut the compiler up about an alleged missing default case in switch statement

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'code/hygiene'

* code/hygiene:
  cosmetics, shut the compiler up about an alleged missing default case in switch statement
  hygiene, start out size_t for-loops with unsigned values
  chore, start out with a really big cushion of memory in prepend_path()
  fix, refactor the realloc code in prepend_path()
  hygiene, if not defined at all, set PATH_MAX to 256
  chore, update copyright years