neotest: Fix comment in runTestSuite wrapper

Commit c6c919dc (Remove all occurrences of the obsolete
'parameters-extra' option) removed

	parameters-extra = true

because after 5c980caf (Drop the 'parameters-extra' option and always
forward extra parameters) "$@" is always implicitly added to argv.

Clarify the comment that was explaining what `parameters-extra = true`
was doing, since it was not updated during parameters-extra removal.

software/neotest/instance.cfg.in

@@ -25,4 +25,4 @@ neotest = ${:home}/neotest
 recipe  = slapos.cookbook:wrapper
 wrapper-path = ${directory:bin}/${:_buildout_section_name_}
 command-line = /bin/bash -c 'cd ${directory:neotest} && ${software:bin}/neotest-runTestSuite "$@"' runTestSuite
-# vvv appends "$@" to argv ^^^ without shell-escaping
+# "$@" is implicitly added to argv

software/neotest/software.cfg

@@ -93,7 +93,7 @@ context =
 
 [instance.cfg]
 <= jinja2-template
-md5sum  = 19b011baacc5abf253da6a52bb90d1f8
+md5sum  = 8a40d365c85d70f057ce997405ac3e88
 
 
 # eggs: