varnishstatdiff test fails on alpine

[gquintard]

observed while trying to package 7.2 on alpine, apparently due to a awk incompatibility:

**   top   === shell {
**** top   shell_cmd|exec 2>&1 ; 
**** top   shell_cmd|\tvarnishstatdiff stat1.txt stat2.txt | tee diff.txt
**** dT    1.367
**** top   shell_out|--- stat1.txt
**** top   shell_out|+++ stat2.txt
**** top   shell_out|awk: cmd. line:6: %*x formats are not supported
**** top   shell_status = 0x0000
**   top   === shell {
**** top   shell_cmd|exec 2>&1 ; 
**** top   shell_cmd|\tsed 's/@/ /' >expected.txt <<-EOF
**** top   shell_cmd|\t--- stat1.txt
**** top   shell_cmd|\t+++ stat2.txt
**** top   shell_cmd|\[email protected]_miss  -0  -0.00  Cache misses
**** top   shell_cmd|\t@                 +1  +0.00
**** top   shell_cmd|\t-MAIN.client_req   0   0.00  Good client requests received
**** top   shell_cmd|\t+MAIN.esi_req      0   0.00  ESI subrequests
**** top   shell_cmd|\[email protected]_object    -0   .     object structs made
**** top   shell_cmd|\t@                 +1   .

this is for statdiff_b00000.vtc

[dridi]

I know: 6c7cf83a79ab3570b522c650af9dfb725156482b.

I built varnish on alpine thanks to distrobox (bob on steroids) and the failure was not obvious. Unlike the failure I had on FreeBSD and SunOS where the original awk was behaving differently, but this was my fault for relying on unspecified behavior (3d331ab2961d1de1882f9a9b9aabe3ef54c4cec6).

Since this one looks outlandish, it has low priority.