zero-install: Use language-specific heredocs

Author: issyl0

Formula/z/zero-install.rb

@@ -74,12 +74,12 @@ def install
   end
 
   test do
-    (testpath/"hello.sh").write <<~EOS
+    (testpath/"hello.sh").write <<~SH
       #!/bin/sh
       echo "hello world"
-    EOS
+    SH
     chmod 0755, testpath/"hello.sh"
-    (testpath/"hello.xml").write <<~EOS
+    (testpath/"hello.xml").write <<~XML
       <?xml version="1.0" ?>
       <interface xmlns="http://zero-install.sourceforge.net/2004/injector/interface" xmlns:compile="http://zero-install.sourceforge.net/2006/namespaces/0compile">
         <name>hello-bash</name>
@@ -92,7 +92,7 @@ def install
           </implementation>
         </group>
       </interface>
-    EOS
+    XML
     assert_equal "hello world\n", shell_output("#{bin}/0launch --console hello.xml")
   end
 end