sh with erl19 warnings fixes

rebar.config

@@ -1,4 +1,4 @@
 {deps_dir,"deps"}.
-{deps, [%{ling, ".*", {git, "git@github.com:cloudozer/ling", {tag, "master"}}},
-        {sh, ".*",   {git, "git@github.com:synrc/sh",       {tag, "1.9"}}}
+{deps, [%{ling, ".*", {git, "git@github.com:cloudozer/ling", {tag, "master"}}}
+        {sh, ".*",   {git, "https://git.4dev.win/n4u/sh.git",  {tag, "1.9-erl19"}}}  %{sh, ".*",   {git, "git@github.com:synrc/sh",  {tag, "1.9"}}}
        ]}.