tools scripts: fix mix of spaces & tabs

tools/srecswap.pl

@@ -6,30 +6,30 @@
 # Jonathan Westhues, April 2004
 
 if(@ARGV == 0) {
-	die "usage: $0 file-to-endian-swap.s19 > out.s19\n";
+    die "usage: $0 file-to-endian-swap.s19 > out.s19\n";
 }
 
 while(<>) {
-	chomp;
+    chomp;
 
-	if(/^S0/) {
-		next;
-	}
-	if(/^S7/) {
-		print "$_\n";
-		next;
-	}
+    if(/^S0/) {
+        next;
+    }
+    if(/^S7/) {
+        print "$_\n";
+        next;
+    }
 
-	if(not /^S3(..)(........)(.*)(..)$/) {
-		die "bad S record at line $.\n";
-	}
+    if(not /^S3(..)(........)(.*)(..)$/) {
+        die "bad S record at line $.\n";
+    }
 
-	$data = $3;
-	$checksum = $4;
+    $data = $3;
+    $checksum = $4;
 
-	print "S3$1$2";
-	while($data =~ m#(..)(..)(..)(..)#g) {
-		print "$4$3$2$1";
-	}
-	print "$checksum\n";
+    print "S3$1$2";
+    while($data =~ m#(..)(..)(..)(..)#g) {
+        print "$4$3$2$1";
+    }
+    print "$checksum\n";
 }