Some minor changes and bug fixes I've happened upon through my own testing.
changes to main.go:
```
- change the CLI syntax for searching to be `allpac search {package name}` instead of `allpac search -package {package name}`
- ensure when pacman doesn't find anything, it doesn't return an error. (pacman just exits with error code 1 when it doesn't find anything. Which is super silly but whatever)
```
changes to search.go:
```
- add some changes to ensure if pacman is "erroring" it's a real error. Not just pacman returning Exit code 1 because it didn't get a result.
```
