[aur] fix: not able to handle missing dependencies with symbols

CHANGELOG.md

@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - AUR:
     - update-checking for some scenarios
     - not respecting 'ignorepkg' settings in **pacman.conf**
+    - not able to handle **missing dependencies with symbols** ( e.g: libpng++ )
 
 ## [0.7.0] 2019-10-18
 ### Features

bauh/gems/arch/pacman.py

@@ -14,7 +14,7 @@ def is_enabled() -> bool:
 
 
 def get_mirrors(pkgs: Set[str]) -> dict:
-    pkgre = '|'.join(pkgs)
+    pkgre = '|'.join(pkgs).replace('+', r'\+').replace('.', r'\.')
 
     searchres = new_subprocess(['pacman', '-Ss', pkgre]).stdout
     mirrors = {}