Remove trailing whitespace for the entire source tree

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/include/nonunix/grp.h b/include/nonunix/grp.h
index 4130cb7..ef019bd 100644
--- a/include/nonunix/grp.h
+++ b/include/nonunix/grp.h
@@ -7,10 +7,10 @@
 
 struct group
   {
-    char *gr_name;	
+    char *gr_name;
     char *gr_passwd;
-    __gid_t gr_gid;	
-    char **gr_mem;	
+    __gid_t gr_gid;
+    char **gr_mem;
   };
 
 #define getgrgid(i) NULL