sources: fix pr_perror usage

This is log cleanup patch.
Pr_perror prints new line by itself.
Signed-off-by: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

criu/cgroup.c

@@ -1245,7 +1245,7 @@ static int restore_cgroup_prop(const CgroupPropEntry * cg_prop_entry_p,
 
 	len = strlen(cg_prop_entry_p->value);
 	if (write(fd, cg_prop_entry_p->value, len) != len) {
-		pr_perror("Failed writing %s to %s\n", cg_prop_entry_p->value, path);
+		pr_perror("Failed writing %s to %s", cg_prop_entry_p->value, path);
 		goto out;
 	}
 

criu/cr-restore.c

@@ -1024,7 +1024,7 @@ static int wait_on_helpers_zombies(void)
 		switch (pi->state) {
 		case TASK_DEAD:
 			if (waitid(P_PID, pid, NULL, WNOWAIT | WEXITED) < 0) {
-				pr_perror("Wait on %d zombie failed\n", pid);
+				pr_perror("Wait on %d zombie failed", pid);
 				return -1;
 			}
 			break;

criu/fsnotify.c

@@ -163,7 +163,7 @@ static char *alloc_openable(unsigned int s_dev, unsigned long i_ino, FhEntry *f_
 		openable_fd = openat(mntfd, __path, O_PATH);
 		if (openable_fd >= 0) {
 			if (fstat(openable_fd, &st)) {
-				pr_perror("Can't stat on %s\n", __path);
+				pr_perror("Can't stat on %s", __path);
 				close(openable_fd);
 				return ERR_PTR(-errno);
 			}

criu/mem.c

@@ -55,7 +55,7 @@ int do_task_reset_dirty_track(int pid)
                if (errno == EINVAL) /* No clear-soft-dirty in kernel */
                        ret = 1;
                else {
-                       pr_perror("Can't reset %d's dirty memory tracker (%d)\n", pid, errno);
+                       pr_perror("Can't reset %d's dirty memory tracker (%d)", pid, errno);
                        ret = -1;
                }
        } else {

criu/mount.c

@@ -1372,7 +1372,7 @@ static int parse_binfmt_misc_entry(struct bfd *f, BinfmtMiscEntry *bme)
 		DUP_EQUAL_AS("mask ", mask)
 #undef DUP_EQUAL_AS
 
-		pr_perror("binfmt_misc: unsupported feature %s\n", str);
+		pr_perror("binfmt_misc: unsupported feature %s", str);
 		return -1;
 	}
 
@@ -2249,7 +2249,7 @@ static int fetch_rt_stat(struct mount_info *m, const char *where)
 	struct stat st;
 
 	if (stat(where, &st)) {
-		pr_perror("Can't stat on %s\n", where);
+		pr_perror("Can't stat on %s", where);
 		return -1;
 	}
 
@@ -2368,7 +2368,7 @@ static int mount_clean_path()
 static int umount_clean_path()
 {
 	if (umount2(mnt_clean_path, MNT_DETACH)) {
-		pr_perror("Unable to umount %s\n", mnt_clean_path);
+		pr_perror("Unable to umount %s", mnt_clean_path);
 		return -1;
 	}
 

criu/namespaces.c

@@ -689,7 +689,7 @@ static int check_user_ns(int pid)
 		}
 
 		if (setgroups(0, NULL) < 0) {
-			pr_perror("Unable to drop supplementary groups\n");
+			pr_perror("Unable to drop supplementary groups");
 			return -1;
 		}
 

criu/proc_parse.c

@@ -327,7 +327,7 @@ static int vma_get_mapfile(char *fname, struct vma_area *vma, DIR *mfd,
 			}
 
 			if (fstat(fd, vma->vmst) < 0) {
-				pr_perror("Can't stat [%s]\n", fname);
+				pr_perror("Can't stat [%s]", fname);
 				close(fd);
 				return -1;
 			}
@@ -2238,7 +2238,7 @@ int parse_task_cgroup(int pid, struct parasite_dump_cgroup_args *args, struct li
 
 	f = fmemopen(args->contents, strlen(args->contents), "r");
 	if (!f) {
-		pr_perror("couldn't fmemopen cgroup buffer:\n%s\n", args->contents);
+		pr_perror("couldn't fmemopen cgroup buffer:\n%s", args->contents);
 		return -1;
 	}