Title: In POSIX Sh, Echo Flags Are Not Supported.

Defect Dojo link: https://defectdojo.prodsec.redhat.com/finding/3231 (3231)

Severity: High

Due Date: May 21, 2022

CWE: CWE-475

CVE: Unknown

Product/Engagement/Test: rhel-7/gzip / gzip-1.5-11.el7_9 / OSH-SCAN (csmock Scan (SARIF))

Source File: /usr/bin/zmore

Source Line: 39

Description:
*Result message:* In POSIX sh, echo flags are not supported.
*Snippet:*
```Problem detected in this context:
37| Report bugs to <bug-gzip@gnu.org>."
38|
39|-> if test "`echo -n a`" = "-n a"; then
40| # looks like a SysV system:
41| n1=''; n2='\c'```
*Rule name:* SC2039
*Code flow:*
1. /usr/bin/zmore:L39:C16
In POSIX sh, echo flags are not supported.

Reporter: Scan Results Collector SA (scan-results-collector-importer-sa) ()