libxkbfile 1.1.3

• configure: Use LT_INIT from libtool 2 instead of deprecated AC_PROG_LIBTOOL
• Set close-on-exec when opening files
• _XkbMakeAtom: remove check for impossible case
• _XkbInitAtoms: check for malloc() failure
• XkbChangeAtomDisplay: stop leaking atom name
• XkbCFReportError: avoid -Wformat-nonliteral warning
• XkbWriteCFile: stop leaking header file ifdef name
• DefaultParser: avoid -Wimplicit-fallthrough warnings
• xkbtext.c: Add tbGetBufferString helper function
• XkbIndentText: Fix -Wsign-compare warning
• Fix -Wsign-compare warnings in xkbtext.c & xkmread.c
• Add a meson build system
• libxkbfile 1.1.3