psh: update to version 1.9_01 git master as of 20121218

* contains runtime fixes for perl5.22+ and other bugs
* rather than hardwire perl version, add perl variants, default +perl5_28
* disable livecheck, further releases unlikely

shells/psh/Portfile

@@ -3,10 +3,19 @@
 PortSystem              1.0
 PortGroup               perl5 1.0
 
+perl5.require_variant   yes
+perl5.conflict_variants yes
+perl5.branches          5.26 5.28
+perl5.create_variants   ${perl5.branches}
+
 name                    psh
-perl5.branches          5.26
-perl5.setup             psh 1.8.1
-revision                3
+perl5.setup             psh 1.9_01
+
+# fetch most recent git master (20121218)
+# contains runtime fixes for perl5.22+ and other bugs
+set git_commit          9e22f850d0f7107bef9a4e3c3da3a5a0459d3b8a
+set git_date            20121218
+version                 1.9_01-${git_date}
 perl5.link_binaries_suffix
 categories              shells perl
 license                 {Artistic-1 GPL}
@@ -21,10 +30,16 @@ supported_archs         noarch
 homepage                https://gnp.github.io/psh/
 master_sites            https://github.com/gnp/psh/archive/
 
-checksums               rmd160  3fa91de47e19bb395b7e3e4a90bd245e7d3f7384 \
-                        sha256  c8414c4381a6a715800a7b59c39276d1f19087bf2e0b6a9b950af4feaf7701a8
+distname                ${git_commit}
 
-worksrcdir              psh-psh-${version}
+checksums               rmd160  d4b765e261b42f44a8b20b9f495239e6df2db107 \
+                        sha256  94e783f54184b18625b0ffa6f7130d24b05bb91b8b1647ff1eaf7e98594c27bd \
+                        size    119347
+
+worksrcdir              ${name}-${git_commit}
 
 depends_lib-append      port:p${perl5.major}-term-readline-gnu \
                         port:p${perl5.major}-bsd-resource
+
+# no further commits since 20121218, further releases unlikely
+livecheck.type          none