* fixed unescaped backslash

docs/sysutils.tex

@@ -1081,7 +1081,7 @@ On error, \var{False} is returned.
 \Declaration
 Procedure DoDirSeparators(Var FileName : String);
 \Description
-This function replaces all directory separators \var{'\' and '/'}
+This function replaces all directory separators \var{'\\' and '/'}
 to the directory separator character for the current system.
 \Errors
 None.