feat(clap): fix chaining ct calls only display banner once

Only display banner once even when launching other ct commands.

Author: CedricGatay

.ctproject

@@ -6,4 +6,5 @@ ragdoll=echo 'tata is a ragdoll'
 combine=echo "toto is dumb" && echo "tata is a ragdoll" # no recursive ct invoke for this test sentence
 envvar='CTENV="azerty qsdf";echo $CTENV'
 # comment on line
-front='cd ui; ct run' #debugging #18
+front='cd ui; ct run' #debugging #18
+dual="ct help && ct help"

src/extract.rs

@@ -52,6 +52,7 @@ impl RunCommand{
         let sh_sub_command = self.build_subcommand();
         debug_log(|| format!("About to run `sh -c {:?}`", sh_sub_command));
         let s = Command::new("sh")
+            .env("CTNOBANNER","true")
             .arg("-c")
             .arg(sh_sub_command)
             .current_dir(ct_file.path.clone())