Error in portuguese translation of substr_compare

I was read substr_compare description in portuguese language, an I asked myself to test it, so after several test, I found that its wrong. The text is in Portuguese: "Se length é igual ou maior que o comprimento de main_str e length é setado, substr_compare() imprime warning e retorna FALSE." That is translated: "If length is equal or bigger than size of main_str and length is setted, substr_compare() prints a warning and return FALSE" The original is: If offset is equal to or greater than the length of main_str or length is set and is less than 1, substr_compare() prints a warning and returns FALSE.