xmh 1.0.5

• gitlab CI: stop requiring Signed-off-by in commits
• Print which arguments were unknown before giving usage message
• Add -help and -version options
• Modernize lseek() calls
• configure: Use AC_SYS_LARGEFILE to enable large file support
• Replace sprintf calls with snprintf or XtAsprintf
• Use _CONST_X_STRING to make libXt declare String as const char *
• Further reduce the number of -Wdiscarded-qualifiers warnings from 276 to 76
• Mark Punt as _X_NORETURN
• Fix 4 of 4 -Wformat-truncation warnings
• Clear 4 of 6 -Wstringop-truncation warnings
• Plug memory leaks in error paths of ScanDir()
• Handle -Wformat-security warnings from the DEBUG macro
• Convert allocation calls to XtMallocArray or XtReallocArray where appropriate
• Simplify fallback code for systems without S_ISDIR
• xmh 1.0.5