etsh: rename from osh

Aliases/osh

@@ -0,0 +1 @@
+../Formula/etsh.rb

Formula/etsh.rb

@@ -1,4 +1,4 @@
-class Osh < Formula
+class Etsh < Formula
   desc "Two ports of /bin/sh from V6 UNIX (circa 1975)"
   homepage "https://v6shell.org/"
   url "https://v6shell.org/src/osh-4.4.0.tar.gz"
@@ -14,14 +14,18 @@ class Osh < Formula
 
   option "with-examples", "Build with shell examples"
 
+  conflicts_with "teleport", :because => "both install `tsh` binaries"
+
   resource "examples" do
     url "https://v6shell.org/v6scripts/v6scripts-20160128.tar.gz"
     sha256 "c23251137de67b042067b68f71cd85c3993c566831952af305f1fde93edcaf4d"
   end
 
   def install
-    system "./configure", "osh", "sh6"
+    system "./configure"
     system "make", "install", "PREFIX=#{prefix}", "SYSCONFDIR=#{etc}", "MANDIR=#{man1}"
+    bin.install_symlink "etsh" => "osh"
+    bin.install_symlink "tsh" => "sh6"
 
     if build.with? "examples"
       resource("examples").stage do
@@ -32,7 +36,7 @@ class Osh < Formula
   end
 
   test do
-    assert_match "brew!", shell_output("#{bin}/osh -c 'echo brew!'").strip
+    assert_match "brew!", shell_output("#{bin}/etsh -c 'echo brew!'").strip
 
     if build.with? "examples"
       ENV.prepend_path "PATH", libexec

formula_renames.json

@@ -120,6 +120,7 @@
   "objective-caml": "ocaml",
   "offline-imap": "offlineimap",
   "open-mpi16": "open-mpi@1.6",
+  "osh": "etsh",
   "percona-server55": "percona-server@5.5",
   "percona-server56": "percona-server@5.6",
   "perl514": "perl@5.14",