Print error message with suggestions if header parse failed

lib/hbc/cli.rb

@@ -116,6 +116,7 @@ class Hbc::CLI
     run_command(command, *rest)
   rescue Hbc::CaskError, Hbc::CaskSha256MismatchError => e
     onoe e
+    puts Hbc::Utils.error_message_with_suggestions if e.is_a?(Hbc::CaskHeaderParseError)
     $stderr.puts e.backtrace if Hbc.debug
     exit 1
   rescue StandardError, ScriptError, NoMemoryError => e

lib/hbc/exceptions.rb

@@ -126,6 +126,9 @@ class Hbc::CaskInvalidError < Hbc::CaskError
   end
 end
 
+class Hbc::CaskHeaderParseError < Hbc::CaskInvalidError
+end
+
 class Hbc::CaskSha256MissingError < ArgumentError
 end
 

lib/hbc/source/path_base.rb

@@ -55,7 +55,7 @@ class Hbc::Source::PathBase
           raise Hbc::CaskInvalidError.new(cask_token, "Bad header line: '#{header_token}' does not match file name")
         end
       else
-        raise Hbc::CaskInvalidError.new(cask_token, "Bad header line: parse failed")
+        raise Hbc::CaskHeaderParseError.new(cask_token, "Bad header line: parse failed")
       end
 
       # simulate "require"

test/cask/dsl_test.rb

@@ -48,7 +48,7 @@ describe Hbc::DSL do
     it "requires a valid header format" do
       err = lambda {
         invalid_cask = Hbc.load('invalid/invalid-header-format')
-      }.must_raise(Hbc::CaskInvalidError)
+      }.must_raise(Hbc::CaskHeaderParseError)
       err.message.must_include 'Bad header line: parse failed'
     end