-if ($bowtie2) { $no_bowtie = 1; $no_ntog = 1; }
-
-pod2usage(-msg => "If bowtie is used, --no-ntog cannot be set!", -exitval => 2, -verbose => 2) if (!$no_bowtie && $no_ntog);
-
-if ($no_bowtie && ($bowtie_path ne "")) { print "Warning: If bowtie is not used, no need to set --bowtie-path option!\n"; }
-if (!$bowtie2 && ($bowtie2_path ne "")) { print "Warning: If bowtie2 is not used, no need to set --bowtie2-path option!\n"; }
+if (!$bowtie && ($bowtie_path ne "")) { print "Warning: If Bowtie is not used, no need to set --bowtie-path option!\n"; }
+if (!$bowtie2 && ($bowtie2_path ne "")) { print "Warning: If Bowtie 2 is not used, no need to set --bowtie2-path option!\n"; }