libgfortran: Don't quote ENV_PPID and ENV_BASE in caf/shmem/shared_memory.c

ENV_PPID and ENV_BASE are declared previously as strings and they
don't need to be quoted.

2026-06-12  John David Anglin  <danglin@gcc.gnu.org>

libgfortran/ChangeLog:

	* caf/shmem/shared_memory.c (shared_memory_set_env): Don't
	quote ENV_PPID.
	(shared_memory_init) Don't quote ENV_BASE.
1 file changed