Removed (pretty inconsistently used) tab chars from source code base.

libsrc/runtime/incsp2.s

@@ -2,32 +2,32 @@
 ; Ullrich von Bassewitz, 25.10.2000
 ;
 ; CC65 runtime: Increment the stackpointer by 2. For performance reasons,
-; 		this modules does also contain the popax function.
+;               this modules does also contain the popax function.
 
-       	.export		popax, incsp2
-	.importzp	sp
+        .export         popax, incsp2
+        .importzp       sp
 
         .macpack        cpu
 
 ; Pop a/x from stack. This function will run directly into incsp2
 
-.proc	popax
+.proc   popax
 
-	ldy  	#1
-   	lda	(sp),y	   	; get hi byte
-       	tax	     	   	; into x
+        ldy     #1
+        lda     (sp),y          ; get hi byte
+        tax                     ; into x
 .if (.cpu .bitand ::CPU_ISET_65SC02)
-	lda	(sp)		; get lo byte
+        lda     (sp)            ; get lo byte
 .else
-   	dey
-   	lda	(sp),y		; get lo byte
+        dey
+        lda     (sp),y          ; get lo byte
 .endif
 
 .endproc
 
 
 
-.proc	incsp2
+.proc   incsp2
 
         inc     sp              ; 5
         beq     @L1             ; 2