Fix location of killall in the examples. (Closes: #189243)

--- /home/pm/deb/logrotate/logrotate-3.7/logrotate.8	2004-02-11 21:18:23.000000000 +0000
+++ logrotate-3.7/logrotate.8	2004-02-11 21:18:54.000000000 +0000
@@ -83,7 +83,7 @@
     rotate 5
     weekly
     postrotate
-        /sbin/killall -HUP syslogd
+        /usr/bin/killall -HUP syslogd
     endscript
 }
 
@@ -93,7 +93,7 @@
     size=100k
     sharedscripts
     postrotate
-        /sbin/killall -HUP httpd
+        /usr/bin/killall -HUP httpd
     endscript
 }