Defines starting with `h' in common

• HAS_ARGUMENT common/cmdline.h:16
• HASH_FNC_BENCHMARKS common/dlgcode.c:194
• HAS_NO_ARGUMENT common/cmdline.h:17
• HEADER_ENCRYPTED_DATA_OFFSET common/volumes.h:98
• HEADER_ENCRYPTED_DATA_SIZE common/volumes.h:94
• HEADER_MASTER_KEYDATA_OFFSET common/volumes.h:99
• HEADER_SALT_OFFSET common/volumes.h:97