patch 8.1.2060: "precedes" in 'listchars' not used properly

Problem:    "precedes" in 'listchars' not used properly.
Solution:   Correctly handle the "precedes" char in list mode for long lines.
            (Christian Brabandt, closes #4953)
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 9f3d1da..1dd7491 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -4842,9 +4842,9 @@
 			off and the line continues beyond the right of the
 			screen.
 							*lcs-precedes*
-	  precedes:c	Character to show in the first column, when 'wrap'
-			is off and there is text preceding the character
-			visible in the first column.
+	  precedes:c	Character to show in the first visible column of the
+			physical line, when there is text preceding the
+			character visible in the first column.
 							*lcs-conceal*
 	  conceal:c	Character to show in place of concealed text, when
 			'conceallevel' is set to 1.