Properly escape symbols in useradd docs

package.json

@@ -1,6 +1,6 @@
 {
     "name": "fwdekker.com",
-    "version": "0.39.4",
+    "version": "0.39.5",
     "description": "The source code of [my personal website](https://fwdekker.com/).",
     "author": "Felix W. Dekker",
     "browser": "dist/bundle.js",

src/main/js/Commands.ts

@@ -389,8 +389,8 @@ export enum ExitCode {
 }
 
 
-// An escaped newline escape symbol.
-const n = "\\\\\\";
+// An escaped newline escape symbol
+const n = "".trimMultiLinesSep + "".trimMultiLinesSep;
 
 /**
  * Returns the script contents of the binaries in the `/bin` directory.
@@ -1067,7 +1067,7 @@ return new Command(
     \`Adds a user with the given data to the system.
 
     The <u>name</u> must consist solely of alphanumerical characters.
-    The <u>home</u> directory and the <u>description</u> must not contain the pipe character (') or the newline ${n}
+    The <u>home</u> directory and the <u>description</u> must not contain the pipe character ('|') or the newline ${n}
     character ('\\\\n').
 
     If no <u>home</u> is given, it defaults to "/home/<u>name</u>".\`.trimMultiLines(),

src/main/js/Extensions.ts

@@ -4,6 +4,8 @@ interface String {
     trimLines(): string;
 
     trimMultiLines(): string;
+
+    trimMultiLinesSep: string;
 }
 
 /**
@@ -37,9 +39,14 @@ String.prototype.trimLines = function(): string {
  * split.
  */
 String.prototype.trimMultiLines = function(): string {
-    return this.trimLines().split("\\").map(it => it.trimLeft()).join("");
+    return this.trimLines().split(this.trimMultiLinesSep).map(it => it.trimLeft()).join("");
 };
 
+/**
+ * The separator used in `#trimMultiLines`.
+ */
+String.prototype.trimMultiLinesSep = "\\\\\\";
+
 
 interface Array<T> {
     sortAlphabetically(transform: (element: T) => string, caseSensitive: boolean): T[];