Index: typo3/sysext/install/mod/class.tx_install.php
===================================================================
--- typo3/sysext/install/mod/class.tx_install.php	(revision 7383)
+++ typo3/sysext/install/mod/class.tx_install.php	(working copy)
@@ -8247,7 +8247,7 @@
 			$content = t3lib_parsehtml::substituteSubpart(
 				$content,
 				'###WARNINGS###',
-				implode(chr(10), $warningsSubpart)
+				$warningsSubpart
 			);
 		}
 			// Fill the markers