crew: Fix crew build

Signed-off-by: SupeChicken666 <me@supechicken666.dev>

bin/crew

@@ -1391,7 +1391,7 @@ def resolve_dependencies_and_build
       post_install
     end
 
-    search @pkg.name, silent: true
+    search origin, silent: true
     build_package CREW_LOCAL_BUILD_DIR
   rescue InstallError => e
     abort "#{@pkg.name} failed to build: #{e}".lightred

lib/convenience_functions.rb

@@ -43,11 +43,11 @@ class ConvenienceFunctions
   def self.read_filelist(path)
     filelist = File.readlines(path, chomp: true)
 
-    if filelist.first.start_with?('# Total size')
+    if filelist.first&.start_with?('# Total size')
       total_size, *contents = filelist
       return [total_size[/Total size: (\d+)/, 1].to_i, contents]
     else
-      return [0, *filelist]
+      return [0, filelist]
     end
   end