whitespace fixes. no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/coreutils/df.c b/coreutils/df.c
index 2c72e82..5e9a867 100644
--- a/coreutils/df.c
+++ b/coreutils/df.c
@@ -110,8 +110,8 @@
 		df_disp_hr = xatoul_range(chp, 1, ULONG_MAX); /* disallow 0 */
 
 	/* From the manpage of df from coreutils-6.10:
-	   Disk space is shown in 1K blocks by default, unless the environment
-	   variable POSIXLY_CORRECT is set, in which case 512-byte blocks are used.
+	 * Disk space is shown in 1K blocks by default, unless the environment
+	 * variable POSIXLY_CORRECT is set, in which case 512-byte blocks are used.
 	 */
 	if (getenv("POSIXLY_CORRECT")) /* TODO - a new libbb function? */
 		df_disp_hr = 512;