node_exporter: fix RuboCop Style/TrailingBodyOnMethodDefinition.

Formula/node_exporter.rb

@@ -25,7 +25,8 @@ class NodeExporter < Formula
     prefix.install_metafiles
   end
 
-  def caveats; <<~EOS
+  def caveats
+    <<~EOS
       When used with `brew services`, node_exporter's configuration is stored as command line flags in
         #{etc}/node_exporter.args
 
@@ -39,7 +40,8 @@ class NodeExporter < Formula
 
   plist_options :manual => "node_exporter"
 
-  def plist; <<~EOS
+  def plist
+    <<~EOS
       <?xml version="1.0" encoding="UTF-8"?>
         <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
         <plist version="1.0">