Fix typo in container_selinux(8) man page

Author: ipilcher

container_selinux.8

@@ -99,7 +99,7 @@ If you want to allow containers to read shared public files (public_content_t an
 If you want to allow containers to read and write shared public files (public_content_rw_t), set the container_manage_public_content boolean. Disabled by default.
 
 .EX
-.B set sebool -P container_manage_public_content 1
+.B setsebool -P container_manage_public_content 1
 
 .EE