{{{1}}}_ {{#ifeq:+|-| {{#ifexist:|}} | {{#ifexist:}} }}
Usage:
Used to indicate a FreeBSD port.
Example:
{{prt|ftp/curl|BSD}} produces ftp/curl BSD.
{{prt|ftp/curl|}} produces ftp/curl .
{{prt|ftp/curl}} produces ftp/curl
