Warning fails to show

[paulmelis]

As also noticed in #24 I get an error about warn() not being defined when it is used to show a warning ;-)

julia> using LMDB

julia> env = create()
Environment is created

julia> env[:mapsize] = 52428800
ERROR: UndefVarError: warn not defined
Stacktrace:
 [1] setindex!(env::Environment, val::UInt32, option::Symbol)
   @ LMDB ~/.julia/packages/LMDB/g7vek/src/env.jl:114
 [2] setindex!(env::Environment, val::Int64, option::Symbol)
   @ LMDB ~/.julia/packages/LMDB/g7vek/src/env.jl:118
 [3] top-level scope
   @ REPL[4]:1

(@v1.7) pkg> st LMDB
      Status `~/.julia/environments/v1.7/Project.toml`
  [11f193de] LMDB v0.2.1

julia> versioninfo()
Julia Version 1.7.1
Commit ac5cc99908 (2021-12-22 19:35 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i5-4460  CPU @ 3.20GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, haswell)

Edit: yes, I should be using :MapSize, but that's not the point here :-)

[meggart]

Thanks a lot for the report. I will fix when I am working on the repo again, but might take a few weeks. PR's by anyone are welcome as well...