Replace a couple of strtolower($txt[posts]) with $txt[manageposts_posts]
Replace a couple of strtolower($txt[posts]) with $txt[manageposts_posts]

Signed-off-by: emanuele <ac2faa8b943b3fcadaf05ed2541f4eebde440ed7@gmail.com>

emanuele45/Dialogo,Spuds/Elkarte,interlab/Elkarte,StealthWombat/How-to-fork-an-Elk,interlab/Elkarte,StealthWombat/How-to-fork-an-Elk,elkarte/Elkarte,joshuaadickerson/Elkarte2,nwsw/Elkarte,elkarte/Elkarte,nwsw/Elkarte,joshuaadickerson/Elkarte2,nwsw/Elkarte,joshuaadickerson/Elkarte2,Spuds/Elkarte,emanuele45/Dialogo,Spuds/Elkarte,interlab/Elkarte,joshuaadickerson/Elkarte2,StealthWombat/How-to-fork-an-Elk,StealthWombat/How-to-fork-an-Elk,elkarte/Elkarte,emanuele45/Dialogo