fetch disassembly show '\t' as 't'

[zqb-all]

Describe the bug
fetch disassembly show '\t' as 't'

To Reproduce
use riscv gdb, click fetch disassembly

Screenshots

Please complete the following information:

• OS: ubuntu run on windows wsl2
• gdbgui version (gdbgui -v): v0.15.0.1 and v0.15.1.0
• gdb version (gdb -v): 10.1 configured as "--host=x86_64-pc-linux-gnu --target=riscv64-unknown-elf"
• browser [e.g. chrome, safari]: Edge
• python packages (pip freeze):

pip3 freeze
argcomplete==2.0.0
colorlog==6.7.0
distlib==0.3.6
filelock==3.8.0
nox==2022.8.7
packaging==21.3
platformdirs==2.5.2
py==1.11.0
pyparsing==3.0.9
virtualenv==20.16.6

[zqb-all]