provide possible fix for license/sortpom

Author: php-coder

Dangerfile

@@ -23,11 +23,13 @@ require 'nokogiri'
 
 pwd = Dir.pwd + '/'
 
-def print_errors_summary(program, errors, link)
+def print_errors_summary(program, errors, link, suggested_fix = '')
 	if errors == 1
-		message("#{program} reports about #{errors} error. Please, fix it. See also: <a href=\"#{link}\">#{link}</a>")
+		fix_msg = "Please, fix it#{suggested_fix}"
+		message("#{program} reports about #{errors} error. #{fix_msg}. See also: <a href=\"#{link}\">#{link}</a>")
 	elsif errors > 0
-		message("#{program} reports about #{errors} errors. Please, fix them. See also: <a href=\"#{link}\">#{link}</a>")
+		fix_msg = "Please, fix them#{suggested_fix}"
+		message("#{program} reports about #{errors} errors. #{fix_msg}. See also: <a href=\"#{link}\">#{link}</a>")
 	end
 end
 
@@ -114,7 +116,12 @@ else
 				fail("license error: #{line}")
 			end
 		end
-	print_errors_summary 'license plugin', errors_count, 'https://github.com/php-coder/mystamps/wiki/check-license-header'
+	print_errors_summary(
+		program:'license plugin',
+		errors:errors_count,
+		link:'https://github.com/php-coder/mystamps/wiki/check-license-header',
+		suggested_fix:' by executing `mvn license:format`'
+	)
 end
 
 # Handle `mvn sortpom:verify` output
@@ -143,7 +150,12 @@ else
 		line.sub!('[ERROR] ', '')
 		fail("pom.xml error: #{line}")
 	end
-	print_errors_summary 'sortpom plugin', errors_count, 'https://github.com/php-coder/mystamps/wiki/sortpom'
+	print_errors_summary(
+		program:'sortpom plugin',
+		errors:errors_count,
+		link:'https://github.com/php-coder/mystamps/wiki/sortpom',
+		suggested_fix:' by executing `mvn sortpom:sort`'
+	)
 end
 
 # Handle `rflint` output