/** Copy a string, escaping the 'chr' characters in it
*
* @param str The string to be copied
- * @param char The character to be escaped
+ * @param chr The character to be escaped
* @return A copy of the string with every original 'chr' being
* transformed into double 'chr'.
*/
/** Copy a string, unescaping the 'chr' characters in it
*
* @param str The string to be copied
- * @param char The character to be escaped
+ * @param chr The character to be escaped
* @return A copy of the string with every occurrence of double 'chr' in
* the original string being copied as a single 'chr'.
*/