golang can't print long string on debug console

[wzh90]

Issue Type: Bug

I read a image file to Base64 and want to print it on the debug console.
but vscode is blocked and debug can not quit.

i try to find the debugging process , it is returned.

debugger is dlv

VS Code version: Code 1.36.1 (2213894, 2019-07-08T22:56:38.504Z)
OS version: Darwin x64 18.6.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz (4 x 2700)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_deferred_display_list: disabled_off skia_renderer: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: disabled_off webgl: enabled webgl2: enabled
Load (avg)	3, 3, 3
Memory (System)	16.00GB (4.33GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (2)

Extension	Author (truncated)	Version
Go	ms-	0.11.4
vscode-icons	vsc	8.8.0

[vscodebot]

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