vidjil.cpp: correct output messages with or without --no-vidjil

fixes 828d7e09

algo/tests/should-get-tests/no-output.should

@@ -4,7 +4,7 @@ $ There are three clones in the .vidjil
 3:"id"
 
 $ Correct output message
-1:"data file for the web platform"
+1:Vidjil web application
 
 !LAUNCH: $VIDJIL_DIR/$EXEC --no-vidjil -z 0 -g $VIDJIL_DIR/germline/homo-sapiens.g:IGH $VIDJIL_DATA/Stanford_S22.fasta ; cat out/Stanford_S22.vidjil
 
@@ -12,7 +12,7 @@ $ There are no clones in the .vidjil
 0:"id"
 
 $ Correct output message
-1:"only metadata"
+1:only metadata
 
 !LAUNCH: rm out/Stanford_S22.tsv ; $LAUNCHER $VIDJIL_DIR/$EXEC $EXTRA -z 0 -g $VIDJIL_DIR/germline/homo-sapiens.g:IGH $VIDJIL_DATA/Stanford_S22.fasta > /dev/null ; touch out/Stanford_S22.tsv ; cat out/Stanford_S22.tsv
 

algo/vidjil.cpp

@@ -1747,7 +1747,7 @@ int main (int argc, char **argv)
 
   //$ Output .vidjil json
   cout << "  ==> " << f_json ;
-  if (no_vidjil)
+  if (!no_vidjil)
   {
     cout << "\t(data file for the Vidjil web application)" << endl;
   }