doc: move specific checks to advanced options, for a less intimidatin… (#10779)

* doc: move specific checks to advanced options, for a less intimidating help

* remove useless bool

compiler/commands.nim

@@ -102,10 +102,8 @@ proc writeVersionInfo(conf: ConfigRef; pass: TCmdLinePass) =
                {msgStdout})
     msgQuit(0)
 
-proc writeCommandLineUsage*(conf: ConfigRef; helpWritten: var bool) =
-  if not helpWritten:
-    msgWriteln(conf, getCommandLineDesc(conf), {msgStdout})
-    helpWritten = true
+proc writeCommandLineUsage*(conf: ConfigRef) =
+  msgWriteln(conf, getCommandLineDesc(conf), {msgStdout})
 
 proc addPrefix(switch: string): string =
   if len(switch) == 1: result = "-" & switch

compiler/nim.nim

@@ -68,7 +68,7 @@ proc handleCmdLine(cache: IdentCache; conf: ConfigRef) =
   )
   self.initDefinesProg(conf, "nim_compiler")
   if paramCount() == 0:
-    writeCommandLineUsage(conf, conf.helpWritten)
+    writeCommandLineUsage(conf)
     return
 
   self.processCmdLineAndProjectPath(conf)

compiler/options.nim

@@ -194,7 +194,6 @@ type
     features*: set[Feature]
     arguments*: string ## the arguments to be passed to the program that
                        ## should be run
-    helpWritten*: bool
     ideCmd*: IdeCmd
     oldNewlines*: bool
     cCompiler*: TSystemCC