Add missing newlines at end of error messages

src/bin/psql/command.c

@@ -1850,7 +1850,7 @@ do_edit(const char *filename_arg, PQExpBuffer query_buf,
 		ret = GetTempPath(MAXPGPATH, tmpdir);
 		if (ret == 0 || ret > MAXPGPATH)
 		{
-			psql_error("cannot locate temporary directory: %s",
+			psql_error("could not locate temporary directory: %s\n",
 					   !ret ? strerror(errno) : "");
 			return false;
 		}

src/bin/psql/common.c

@@ -87,7 +87,7 @@ pg_calloc(size_t nmemb, size_t size)
 	tmp = calloc(nmemb, size);
 	if (!tmp)
 	{
-		psql_error("out of memory");
+		psql_error("out of memory\n");
 		exit(EXIT_FAILURE);
 	}
 	return tmp;