log: Replace perror-s with pr_perror-s over code

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

cr-dump.c

@@ -595,7 +595,7 @@ static int get_task_personality(pid_t pid, u32 *personality)
 		goto err;
 
 	if (!fgets(loc_buf, sizeof(loc_buf), file)) {
-		perror("Can't read task personality");
+		pr_perror("Can't read task personality");
 		goto err;
 	}
 

cr-restore.c

@@ -798,7 +798,7 @@ static int restore_root_task(struct pstree_item *init, struct cr_options *opts)
 
 	ret = sigaction(SIGCHLD, NULL, &act);
 	if (ret < 0) {
-		perror("sigaction() failed\n");
+		pr_perror("sigaction() failed\n");
 		return -1;
 	}
 
@@ -809,7 +809,7 @@ static int restore_root_task(struct pstree_item *init, struct cr_options *opts)
 
 	ret = sigaction(SIGCHLD, &act, &old_act);
 	if (ret < 0) {
-		perror("sigaction() failed\n");
+		pr_perror("sigaction() failed\n");
 		return -1;
 	}
 
@@ -880,7 +880,7 @@ out:
 
 	ret = sigaction(SIGCHLD, &old_act, NULL);
 	if (ret < 0) {
-		perror("sigaction() failed\n");
+		pr_perror("sigaction() failed\n");
 		return -1;
 	}