don't rely on Fortran2003 reallocation on assignment


git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@12897 bac0169d-1eea-4375-b5f6-f89d2ced9994
Bugfix in generation of new f_env_id

git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@12898 bac0169d-1eea-4375-b5f6-f89d2ced9994