Fixed some memory leaks.

src/files.c

@@ -15,6 +15,8 @@ int inputPrimes(char *file, List *list) {
 	while(mpz_inp_raw(n, in))
 		if(addToList(list, n) == 1) return 3;
 
+	mpz_clear(n);
+
 	if(fclose(in)) return 2;
 	return 0;
 }

src/list.c

@@ -15,7 +15,7 @@ int initList(List *restrict l) {
 }
 
 void deInitList(List *restrict l) {
-	for(size_t i = 0; i < l->size; ++i) {
+	for(size_t i = 0; i < l->end; ++i) {
 		mpz_clear(l->list[i]);
 	}
 	free(l->list);

src/main.c

@@ -199,6 +199,7 @@ int main(int argc, char *argv[]) {
 		while(mpz_cmp(primes.list[rootInd], numRoot) <= 0) {
 			if(++rootInd > primes.end) {
 				fprintf(stderr, "Error: `rootInd' surpassed `primes.end'.\n");
+				exitCode = 1;
 				goto releaseMemory;
 			}
 		}