spaces to tabs for asm files

input/core/itoa.asm

@@ -1,23 +1,23 @@
 section .bss
-    buffer resb 20
+	buffer resb 20
 
 section .text
-    global itoa
+	global itoa
 
 itoa:
-    mov rax, rdi
-    mov rsi, buffer + 19
-    mov byte [rsi], 0
-    dec rsi
+	mov rax, rdi
+	mov rsi, buffer + 19
+	mov byte [rsi], 0
+	dec rsi
 .loop:
-    xor rdx, rdx
-    mov rcx, 10
-    div rcx
-    add dl, '0'
-    mov [rsi], dl
-    dec rsi
-    test rax, rax
-    jnz .loop
-    inc rsi
-    mov rax, rsi
-    ret
+	xor rdx, rdx
+	mov rcx, 10
+	div rcx
+	add dl, '0'
+	mov [rsi], dl
+	dec rsi
+	test rax, rax
+	jnz .loop
+	inc rsi
+	mov rax, rsi
+	ret