Log Message:
Updated pkglint to 5.3.6.

Changes since 5.3.5:

* Warn about !empty(${VARNAME}), which should be !empty(VARNAME)
* Distinguish ${VARNAME} == "value" and ${VARNAME:Mpattern}
* Corrected isQuotingNecessary for some variable types
* Generally, parse files from mk/, since they define variables
  used by packages. This avoids wrong warnings about possible
  spelling mistakes.
* Warn about $(VARNAME) (with parentheses instead of braces)
* Warn about missing final @ in ${VAR:@var@...@}
* Updated list of hardware architectures
* Enabled CPU profiling on NetBSD