Author: Daniel Baumann <mail@daniel-baumann.ch>
Description: Adding POSIXLY_CORRECT reference in usage message (Closes: #576679).

--- a/src/file_opts.h
+++ b/src/file_opts.h
@@ -34,8 +34,8 @@
 OPT('k', "keep-going", 0, "           don't stop at the first match\n")
 OPT('l', "list", 0, "                 list magic strength\n")
 #ifdef S_IFLNK
-OPT('L', "dereference", 0, "          follow symlinks (default)\n")
-OPT('h', "no-dereference", 0, "       don't follow symlinks\n")
+OPT('L', "dereference", 0, "          follow symlinks (default if POSIXLY_CORRECT is set)\n")
+OPT('h', "no-dereference", 0, "       don't follow symlinks (default if POSIXLY_CORRECT is not set)\n")
 #endif
 OPT('n', "no-buffer", 0, "            do not buffer output\n")
 OPT('N', "no-pad", 0, "               do not pad output\n")