added error handling for common troubleshooting tools

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 27b8ca0..4367426 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -22,7 +22,7 @@
          backup: yes
          regexp: '^(#baseurl=)(.*)'
          replace: 'baseurl=\2'
-         dest: /etc/yum.repos.d/epel.repo"
+         dest: '/etc/yum.repos.d/epel.repo'
 
     - name: remove mirrorlist in epel.repo definition
       replace: