Use index, since it can apparently do regex

Author: wvu

lib/msf/core/db.rb

@@ -2972,10 +2972,10 @@ def import_filetype_detect(data)
 		elsif (firstline.index("<scanJob>"))
 			@import_filedata[:type] = "Retina XML"
 			return :retina_xml
-		elsif (firstline =~ /<get_reports_response status=['"]200['"] status_text=['"]OK['"]>/)
+		elsif (firstline.index(/<get_reports_response status=['"]200['"] status_text=['"]OK['"]>/))
 			@import_filedata[:type] = "OpenVAS XML"
 			return :openvas_new_xml
-		elsif (firstline =~ /<report id=['"]/)
+		elsif (firstline.index(/<report id=['"]/))
 			@import_filedata[:type] = "OpenVAS XML"
 			return :openvas_new_xml
 		elsif (firstline.index("<NessusClientData>"))