Suricata

If there is the following bypass option misspelled (notice the "p" missing) below - Suricata does not error on start neither displays a warning.
Using the following start command -
suricata -vvv --af-packet --pidfile=/var/run/suricata.pid

stream:
  memcap: 32gb
  checksum-validation: no      # reject wrong csums
  inline: auto                  # auto will use inline mode in IPS mode, yes or no set it statically
  prealloc-sessions: 200000
  byass: yes
  reassembly:
    memcap: 64gb
    depth: 1mb                  # reassemble 1mb into a stream
    toserver-chunk-size: 2560
    toclient-chunk-size: 2560
    randomize-chunk-size: yes
    #randomize-chunk-range: 10
    #raw: yes
    segment-prealloc: 200000
    #check-overlap-different-data: true

Additional info

suricata -V
This is Suricata version 4.1.0-dev (rev 683be948)

# suricata --build-info
This is Suricata version 4.1.0-dev (rev 683be948)
Features: PCAP_SET_BUFF AF_PACKET HAVE_PACKET_FANOUT LIBCAP_NG LIBNET1.1 HAVE_HTP_URI_NORMALIZE_HOOK PCRE_JIT HAVE_NSS HAVE_LUA HAVE_LUAJIT HAVE_LIBJANSSON TLS MAGIC RUST 
SIMD support: SSE_4_2 SSE_4_1 SSE_3 
Atomic intrisics: 1 2 4 8 16 byte(s)
64-bits, Little-endian architecture
GCC version 4.2.1 Compatible Clang 6.0.0 (tags/RELEASE_600/final), C version 199901
compiled with _FORTIFY_SOURCE=0
L1 cache line size (CLS)=64
thread local storage method: __thread
compiled with LibHTP v0.5.28, linked against LibHTP v0.5.28

Suricata Configuration:
  AF_PACKET support:                       yes
  eBPF support:                            yes
  XDP support:                             yes
  PF_RING support:                         no
  NFQueue support:                         no
  NFLOG support:                           no
  IPFW support:                            no
  Netmap support:                          no
  DAG enabled:                             no
  Napatech enabled:                        no
  WinDivert enabled:                       no

  Unix socket enabled:                     yes
  Detection enabled:                       yes

  Libmagic support:                        yes
  libnss support:                          yes
  libnspr support:                         yes
  libjansson support:                      yes
  liblzma support:                         no
  hiredis support:                         no
  hiredis async with libevent:             no
  Prelude support:                         no
  PCRE jit:                                yes
  LUA support:                             yes, through luajit
  libluajit:                               yes
  libgeoip:                                yes
  Non-bundled htp:                         no
  Old barnyard2 support:                   no
  Hyperscan support:                       yes
  Libnet support:                          yes
  liblz4 support:                          yes

  Rust support:                            yes (default)
  Rust strict mode:                        yes
  Rust debug mode:                         no
  Rust compiler:                           rustc 1.24.1
  Rust cargo:                              cargo 0.25.0

  Suricatasc install:                      yes

  Profiling enabled:                       no
  Profiling locks enabled:                 no

Development settings:
  Coccinelle / spatch:                     yes
  Unit tests enabled:                      no
  Debug output enabled:                    no
  Debug validation enabled:                no

Generic build parameters:
  Installation prefix:                     /usr
  Configuration directory:                 /etc/suricata/
  Log directory:                           /var/log/suricata/

  --prefix                                 /usr
  --sysconfdir                             /etc
  --localstatedir                          /var

  Host:                                    x86_64-pc-linux-gnu
  Compiler:                                clang-6.0 (exec name) / clang (real)
  GCC Protect enabled:                     no
  GCC march native enabled:                yes
  GCC Profile enabled:                     no
  Position Independent Executable enabled: no
  CFLAGS                                   -g -O2 -march=native -I${srcdir}/../rust/gen/c-headers
  PCAP_CFLAGS                               -I/usr/include
  SECCFLAGS