static async writeLocaleIDsToFile(sFilePath, sArrayAnchor, aLocaleIds) {
		let sFileContent = await fs.promises.readFile(sFilePath, "utf8");
		const iArrayStart = sFileContent.indexOf(sArrayAnchor);
		const iArrayEnd = sFileContent.indexOf(";", iArrayStart);
		// Format the array with line breaks after 80 characters
		const aFormattedArray = JSON.stringify(aLocaleIds)
			.replace(/(.{80,}?,)/g, "$1\n\t\t");

		sFileContent = sFileContent.slice(0, iArrayStart) + sArrayAnchor + aFormattedArray
			+ sFileContent.slice(iArrayEnd);

		fs.promises.writeFile(sFilePath, sFileContent);
	}
Writes the given array of locale IDs to the given file path at the position of the given array anchor.
If the array exceeds the line length of 80 characters, the array is formatted with line breaks.

@param {String} sFilePath The path to the file to write the locale IDs to
@param {String} sArrayAnchor The anchor string to search for in the file referenced by the <coe>sFilePath</code>
@param {Array<String>} aLocaleIds The array of locale IDs to write into the file