clean rename itoa to ntoa for number to ascii

src/ntoa.🗿

@@ -1,4 +1,4 @@
-itoa_get_size(number)
+ntoa_get_size(number)
 {
 	local size = 0;
 	
@@ -13,12 +13,12 @@ itoa_get_size(number)
 	}
 }
 
-itoa(number)
+ntoa(number)
 {
 	local str;
 	local size;
 
-	size = itoa_get_size(number);
+	size = ntoa_get_size(number);
 	str = galloc(size + 1);
 	if (str == 0)
 		return (0);

src/putnum.🗿

@@ -1,7 +1,7 @@
 putnum(number)
 {
 	local str;
-	str = itoa(number);
+	str = ntoa(number);
 	if (str == 0)
 		return;
 	putstr(str);

tests/ntoa.🗿

@@ -2,15 +2,15 @@ main()
 {
 	local ptr;
 
-	name = "itoa";
+	name = "ntoa";
 
-	ptr = itoa(9000);
+	ptr = ntoa(9000);
 	test_str(ptr, "9000", "");
 	free(ptr);
-	ptr = itoa(55);
+	ptr = ntoa(55);
 	test_str(ptr, "55", "");
 	free(ptr);
-	ptr = itoa(0);
+	ptr = ntoa(0);
 	test_str(ptr, "0", "");
 	free(ptr);
 }