TT#70901 selenium: change german comparison string when checking for language

When switching language to German, one line of text has changed. Updating
line so that test no longer fails

Change-Id: I3747bc8feb70f917fd6c4f037258df136240d5f1

t/selenium/testrun.py

@@ -311,7 +311,7 @@ class testrun(unittest.TestCase):
         wait_for_invisibility(driver, '//*[@id="csc-language-menu-login"]')
         time.sleep(1)
         self.assertTrue(
-            len(driver.find_elements_by_xpath('//*[@id="csc-login-card"]/div[contains(., "Subscriber Log-in")]')) > 0,
+            len(driver.find_elements_by_xpath('//*[@id="csc-login-card"]/div[contains(., "Subscriber-Anmeldung")]')) > 0,
             "Language wasnt changed to German")
         driver.find_element_by_xpath('//*[@id="csc-header-toolbar-login"]/button').click()
         click_js(driver, '//*[@id="csc-language-menu-login"]/div/div/div[1]')