improve readability of stdio: fix indentation and remove trailing spaces

Change-Id: Ic51e58a7c75d20bf770dc0ebd7f97a338fbe0036
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
diff --git a/libc/stdio/fgets.c b/libc/stdio/fgets.c
index 99bdac9..f26385d 100644
--- a/libc/stdio/fgets.c
+++ b/libc/stdio/fgets.c
@@ -63,12 +63,12 @@
 				/* EOF/error: stop with partial or no line */
 				if (s == buf)
 					return (NULL);
-      break;
-  }
+				break;
+			}
 		}
 		len = fp->_r;
 		p = fp->_p;
-  
+
 		/*
 		 * Scan through at most n bytes of the current buffer,
 		 * looking for '\n'.  If found, copy up to and including