Fix examples of basic values in Builtin.Syntax

backend/Builtin/Syntax.icl

@@ -94,7 +94,7 @@ bs_basicvalues =
 		, "(052, -052, +052)       // Tuple with 42, -42 and 42 in octal notation"
 		, "(0x2a, -0x2a, +0x2A)    // Tuple with 42, -42 and 42 in hexadecimal notation"
 		, "('a', '\\x2a', '\\052')   // Tuple with a normal character and twice the character with ASCII value 42"
-		, "['\\n', '\\r', '\\f', '\\b', '\\t', '\\v', '\\', '\\'', '\\\"']\n" +
+		, "['\\n', '\\r', '\\f', '\\b', '\\t', '\\v', '\\\\', '\\'', '\\\"']\n" +
 		  "                        // All character escapes"
 		, "(42.0, -42.0, 42E-10, +42.0E+10, -42.0E10)\n" +
 		  "                        // Several reals"