Eliminate trailing whitespace & typo in chmod

[llgxela]

Index: chmod.c
===================================================================
RCS file: /cvs/src/bin/chmod/chmod.c,v
retrieving revision 1.42
diff -u -p -u -p -r1.42 chmod.c
--- chmod.c     28 May 2017 08:03:36 -0000      1.42
+++ chmod.c     13 Apr 2018 17:46:36 -0000
@@ -253,10 +253,10 @@ done:
 
                /*
                 * For -RH, the decision of how to handle symlinks depends
-                * on the level: follow it iff it's a command line arg.
+                * on the level: follow it if it's a command line arg.
                 */
                if (fts_options & FTS_COMFOLLOW) {
-                       atflags = p->fts_level == FTS_ROOTLEVEL ? 0 : 
+                       atflags = p->fts_level == FTS_ROOTLEVEL ? 0 :
                            AT_SYMLINK_NOFOLLOW;
                }