--- a/toys/posix/echo.c	Tue Nov 13 16:13:45 2012 -0600
+++ b/toys/posix/echo.c	Tue Nov 13 17:14:08 2012 -0600
@@ -1,6 +1,4 @@
-/* vi: set sw=4 ts=4:
- *
- * echo.c - echo supporting -n and -e.
+/* echo.c - echo supporting -n and -e.
  *
  * Copyright 2007 Rob Landley <rob@landley.net>
  *
@@ -9,27 +7,27 @@
 USE_ECHO(NEWTOY(echo, "^?en", TOYFLAG_BIN))
 
 config ECHO
-	bool "echo"
-	default y
-	help
-	  usage: echo [-ne] [args...]
+  bool "echo"
+  default y
+  help
+    usage: echo [-ne] [args...]
 
-	  Write each argument to stdout, with one space between each, followed
-	  by a newline.
+    Write each argument to stdout, with one space between each, followed
+    by a newline.
 
-	  -n	No trailing newline.
-	  -e	Process the following escape sequences:
-	   \\	 backslash
-	   \0NNN octal values (1 to 3 digits)
-	   \a	 alert (beep/flash)
-	   \b	 backspace
-	   \c	 stop output here (avoids trailing newline)
-	   \f	 form feed
-	   \n	 newline
-	   \r	 carriage return
-	   \t	 horizontal tab
-	   \v	 vertical tab
-	   \xHH	 hexadecimal values (1 to 2 digits)
+    -n	No trailing newline.
+    -e	Process the following escape sequences:
+    	\\	backslash
+    	\0NNN	octal values (1 to 3 digits)
+    	\a	alert (beep/flash)
+    	\b	backspace
+    	\c	stop output here (avoids trailing newline)
+    	\f	form feed
+    	\n	newline
+    	\r	carriage return
+    	\t	horizontal tab
+    	\v	vertical tab
+    	\xHH	hexadecimal values (1 to 2 digits)
 */
 
 #define FOR_echo
@@ -37,58 +35,56 @@
 
 void echo_main(void)
 {
-	int i = 0, out;
-	char *arg, *from = "\\abfnrtv", *to = "\\\a\b\f\n\r\t\v", *c;
+  int i = 0, out;
+  char *arg, *from = "\\abfnrtv", *to = "\\\a\b\f\n\r\t\v", *c;
 
-	for (;;) {
-		arg = toys.optargs[i];
-		if (!arg) break;
-		if (i++) xputc(' ');
+  for (;;) {
+    arg = toys.optargs[i];
+    if (!arg) break;
+    if (i++) xputc(' ');
 
-		// Should we output arg verbatim?
+    // Should we output arg verbatim?
 
-		if (!(toys.optflags&FLAG_e)) {
-			xprintf("%s", arg);
-			continue;
-		}
+    if (!(toys.optflags & FLAG_e)) {
+      xprintf("%s", arg);
+      continue;
+    }
 
-		// Handle -e
+    // Handle -e
 
-		for (c=arg;;) {
-			if (!(out = *(c++))) break;
+    for (c=arg;;) {
+      if (!(out = *(c++))) break;
 
-			// handle \escapes
-			if (out == '\\' && *c) {
-				int n = 0, slash = *(c++);
-				char *found = strchr(from, slash);
-				if (found) out = to[found-from];
-				else if (slash == 'c') goto done;
-				else if (slash == '0') {
-					out = 0;
-					while (*c>='0' && *c<='7' && n++<3)
-						out = (out*8)+*(c++)-'0';
-				} else if (slash == 'x') {
-					out = 0;							
-					while (n++<2) {
-						if (*c>='0' && *c<='9')
-							out = (out*16)+*(c++)-'0';
-						else {
-							int temp = tolower(*c);
-							if (temp>='a' && temp<='f') {
-								out = (out*16)+temp-'a'+10;
-								c++;
-							} else break;
-						}
-					}
-				// Slash in front of unknown character, print literal.
-				} else c--;
-			}
-			xputc(out);
-		}
-	}
+      // handle \escapes
+      if (out == '\\' && *c) {
+        int n = 0, slash = *(c++);
+        char *found = strchr(from, slash);
+        if (found) out = to[found-from];
+        else if (slash == 'c') goto done;
+        else if (slash == '0') {
+          out = 0;
+          while (*c>='0' && *c<='7' && n++<3) out = (out*8)+*(c++)-'0';
+        } else if (slash == 'x') {
+          out = 0;
+          while (n++<2) {
+            if (*c>='0' && *c<='9') out = (out*16)+*(c++)-'0';
+            else {
+              int temp = tolower(*c);
+              if (temp>='a' && temp<='f') {
+                out = (out*16)+temp-'a'+10;
+                c++;
+              } else break;
+            }
+          }
+        // Slash in front of unknown character, print literal.
+        } else c--;
+      }
+      xputc(out);
+    }
+  }
 
-	// Output "\n" if no -n
-	if (!(toys.optflags&FLAG_n)) xputc('\n');
+  // Output "\n" if no -n
+  if (!(toys.optflags&FLAG_n)) xputc('\n');
 done:
-	xflush();
+  xflush();
 }