IO error when elements in CSR mat come more than 50

code:

```
using SparseArrays, SparseMatricesCSR
aa = sprand(ComplexF64, 10, 10, 0.5)
bb = SparseMatrixCSR(transpose(aa))
```

> output

>
> 10×10 SparseMatrixCSR{1, ComplexF64, Int64} with 53 stored entries:Error
> showing value of type SparseMatrixCSR{1, ComplexF64, Int64}:
> ERROR: MethodError: no method matching (::SparseMatricesCSR.var"#_format_line#4"{SparseMatrixCSR{1, ComplexF64, Int64}, IOContext{Base.TTY}})(::Int64, ::Int64, ::Int64, ::Int64)
> Closest candidates are:
> (::SparseMatricesCSR.var"#_format_line#4")(::Any, ::Any, ::Any, ::Any,
> ::Any) at C:\Users\12253\.julia\packages\SparseMatricesCSR\kMj2e\src\SparseMatrixCSR.jl:278
> Stacktrace:
> [1] _broadcast_getindex_evalf
> @ .\broadcast.jl:648 [inlined]
> [2] _broadcast_getindex
> @ .\broadcast.jl:621 [inlined]
> [3] getindex
> @ .\broadcast.jl:575 [inlined]
> [4] copy
> @ .\broadcast.jl:922 [inlined]
> [5] materialize
> @ .\broadcast.jl:883 [inlined]
> [6] show(io::IOContext{Base.TTY}, S::SparseMatrixCSR{1, ComplexF64, Int64})
> @ SparseMatricesCSR ~\.julia\packages\SparseMatricesCSR\kMj2e\src\SparseMatrixCSR.jl:314
> [7] show(io::IOContext{Base.TTY}, #unused#::MIME{Symbol("text/plain")}, S::SparseMatrixCSR{1, ComplexF64, Int64})
> @ SparseMatricesCSR ~\.julia\packages\SparseMatricesCSR\kMj2e\src\SparseMatrixCSR.jl:269
> [8] display(d::REPL.REPLDisplay{REPL.LineEditREPL}, mime::MIME{Symbol("text/plain")}, x::SparseMatrixCSR{1, ComplexF64, Int64})
> @ OhMyREPL ~\.julia\packages\OhMyREPL\07uNa\src\output_prompt_overwrite.jl:8
> [9] display(d::REPL.REPLDisplay, x::Any)
> @ REPL C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\REPL.jl:225
> [10] display(x::Any)
> @ Base.Multimedia .\multimedia.jl:328
> [11] #invokelatest#2
> @ .\essentials.jl:708 [inlined]
> [12] invokelatest
> @ .\essentials.jl:706 [inlined]
> [13] print_response(errio::IO, response::Any, show_value::Bool, have_color::Bool, specialdisplay::Union{Nothing, AbstractDisplay})
> @ REPL C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\REPL.jl:247
> [14] (::REPL.var"#40#41"{REPL.LineEditREPL, Pair{Any, Bool}, Bool, Bool})(io::Any)
> @ REPL C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\REPL.jl:231
> [15] with_repl_linfo(f::Any, repl::REPL.LineEditREPL)
> @ REPL C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\REPL.jl:462
> [16] print_response(repl::REPL.AbstractREPL, response::Any, show_value::Bool, have_color::Bool)
> @ REPL C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\REPL.jl:229
> [17] (::REPL.var"#do_respond#61"{Bool, Bool, REPL.var"#72#82"{REPL.LineEditREPL, REPL.REPLHistoryProvider}, REPL.LineEditREPL, REPL.LineEdit.Prompt})(s::REPL.LineEdit.MIState, buf::Any, ok::Bool)
> @ REPL C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\REPL.jl:798
> [18] #invokelatest#2
> @ .\essentials.jl:708 [inlined]
> [19] invokelatest
> @ .\essentials.jl:706 [inlined]
> [20] run_interface(terminal::REPL.Terminals.TextTerminal, m::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
> @ REPL.LineEdit C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\LineEdit.jl:2441
> [21] run_frontend(repl::REPL.LineEditREPL, backend::REPL.REPLBackendRef) @ REPL C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\REPL\src\REPL.jl:1126
> [22] (::REPL.var"#44#49"{REPL.LineEditREPL, REPL.REPLBackendRef})()
> @ REPL .\task.jl:406

At the same time the CSR array could be successfully indexed.
`bb[1, 1]`
`0.6073110473804666 + 0.38473666513320603im`

```
status

Status `C:\Users\delta\.julia\environments\v1.6\Project.toml`
[6e4b80f9] BenchmarkTools v0.7.0
[052768ef] CUDA v2.6.3
[150eb455] CoordinateTransformations v0.6.1
[442a2c76] FastGaussQuadrature v0.4.7
[42fd0dbc] IterativeSolvers v0.9.0
[5fb14364] OhMyREPL v0.5.10
[14b8a8f1] PkgTemplates v0.7.16
[f0f68f2c] PlotlyJS v0.14.1
[91a5bcdd] Plots v1.11.2
[92933f4c] ProgressMeter v1.5.0
[6038ab10] Rotations v1.0.2
[90137ffa] StaticArrays v1.1.0
[b189fb0b] ThreadPools v1.2.1
```

```
Julia Version 1.6.0
Commit f9720dc2eb (2021-03-24 12:55 UTC)
Platform Info:
OS: Windows (x86_64-w64-mingw32)
CPU: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-11.0.1 (ORCJIT, skylake)
Environment:
JULIA_PKG_SERVER = https://mirrors.bfsu.edu.cn/julia
```