Remove duplicate strerror(errno) printing

Function pr_perror() already spits out strerror(errno), no need to do it
in the calling code.
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>

crtools.c

@@ -148,13 +148,13 @@ struct cr_fdset *cr_fdset_open(int pid, unsigned long use_mask, struct cr_fdset
 
 		ret = unlink(path);
 		if (ret && errno != ENOENT) {
-			pr_perror("Unable to unlink %s (%s)\n", path, strerror(errno));
+			pr_perror("Unable to unlink %s\n", path);
 			goto err;
 		}
 
 		ret = open(path, O_RDWR | O_CREAT | O_EXCL, CR_FD_PERM);
 		if (ret < 0) {
-			pr_perror("Unable to open %s (%s)\n", path, strerror(errno));
+			pr_perror("Unable to open %s\n", path);
 			goto err;
 		}
 
@@ -191,7 +191,7 @@ struct cr_fdset *prep_cr_fdset_for_restore(int pid, unsigned long use_mask)
 
 		ret = open(path, O_RDWR, CR_FD_PERM);
 		if (ret < 0) {
-			pr_perror("Unable to open %s (%s)\n", path, strerror(errno));
+			pr_perror("Unable to open %s\n", path);
 			goto err;
 		}