show: Move extern print_data declaration from sockets.c to header

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

include/crtools.h

@@ -96,6 +96,7 @@ void show_creds(int fd, struct cr_options *o);
 void show_fs(int fd, struct cr_options *o);
 void show_fown_cont(fown_t *fown);
 
+extern void print_data(unsigned long addr, unsigned char *data, size_t size);
 extern struct cr_fd_desc_tmpl fdset_template[CR_FD_MAX];
 
 #define FMT_FNAME_FDINFO	"fdinfo-%d.img"

sockets.c

@@ -1135,8 +1135,6 @@ out:
 	pr_img_tail(CR_FD_UNIXSK);
 }
 
-extern void print_data(unsigned long addr, unsigned char *data, size_t size);
-
 void show_sk_queues(int fd, struct cr_options *o)
 {
 	struct sk_packet_entry pe;