test: do not output non ascii character

[catenacyber]

Link to redmine ticket: None

Describe changes:

• Fix CI by not having S-V hang indefinitely because of a non-ascii character in stderr

Replaces #7868 by printing the right full content, not partially escaped ie contentstr instead of str

suricata-verify-pr: 939

[suricata-qa]

Information:

ERROR: QA failed on tlpw1_files_sha256.

ERROR: QA failed on ips_afp_drop_chk.

field	baseline	test	%
	tlpw1_stats_chk
.app_layer.error.http.parser	64	47	73.44%
	tlpr1_stats_chk
.app_layer.error.http.parser	1548	1103	71.25%
	ips_afp_stats_chk
.capture.kernel_drops	0	1130744	-
.flow.end.state.new	10800	15475	143.29%
.flow.end.tcp_state.syn_sent	0	1873	-
.flow.end.tcp_state.syn_recv	0	414	-
.flow.end.tcp_state.fin_wait1	0	343	-
.flow.end.tcp_state.fin_wait2	0	272	-
.flow.end.tcp_state.time_wait	0	238	-
.flow.end.tcp_state.last_ack	0	252	-
.flow.end.tcp_state.close_wait	0	563	-
.flow.end.tcp_liberal	108000	128729	119.19%
.tcp.reassembly_gap	108000	183198	169.63%
.tcp.overlap	0	54	-
.app_layer.error.http.parser	0	113	-
.app_layer.error.ftp.gap	0	145	-
.app_layer.error.smtp.gap	0	810	-
.app_layer.error.tls.gap	0	13796	-
.app_layer.error.ssh.gap	0	2	-
.app_layer.error.dcerpc_tcp.parser	0	571	-
.ftp.memuse	0	2582	-
	generic_stats_chk
.capture.kernel_drops	0	110168	-
.flow.end.tcp_state.syn_sent	0	225	-
.flow.end.tcp_state.syn_recv	0	4	-
.flow.end.tcp_state.fin_wait1	0	30	-
.flow.end.tcp_state.fin_wait2	0	5	-
.flow.end.tcp_state.time_wait	0	10	-
.flow.end.tcp_state.last_ack	0	13	-
.flow.end.tcp_state.close_wait	0	44	-
.tcp.reassembly_gap	80952	95996	118.58%
.tcp.overlap	0	2	-
.app_layer.error.http.parser	0	19	-
.app_layer.error.ftp.gap	0	4	-
.app_layer.error.smtp.gap	0	30	-
.app_layer.error.dcerpc_tcp.parser	0	11	-
.ftp.memuse	0	239	-

Pipeline 9223

[codecov[bot]]

Codecov Report

Merging #7871 (b5cf49f) into master (fe91506) will increase coverage by 0.12%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #7871      +/-   ##
==========================================
+ Coverage   75.99%   76.11%   +0.12%     
==========================================
  Files         665      666       +1     
  Lines      185963   185998      +35     
==========================================
+ Hits       141327   141577     +250     
+ Misses      44636    44421     -215     

Flag	Coverage Δ
fuzzcorpus	60.84% <100.00%> (-0.02%)	:arrow_down:
suricata-verify	52.76% <100.00%> (+0.25%)	:arrow_up:
unittests	60.69% <100.00%> (-0.01%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

[suricata-qa]

Information:

ERROR: QA failed on SURI_TLPW1_files_sha256.

field	baseline	test	%
	SURI_TLPW1_stats_chk
.app_layer.error.http.parser	64	47	73.44%

Pipeline 9232

[catenacyber]

Replaced by https://github.com/OISF/suricata/pull/7917