Fix old variable names

tasks/compile_ranger.yml

@@ -1,9 +1,9 @@
 ---
 - name: download ranger git repo
   git:
-    repo: "{{ ranger_repo }}"
-    dest: "{{ ranger_download_directory }}"
-    version: "{{ ranger_branch }}"
+    repo: "{{ ranger.repo }}"
+    dest: "{{ ranger.download_directory }}"
+    version: "{{ ranger.branch }}"
 
 - name: install build packages
   become: true
@@ -17,7 +17,7 @@
 - name: Run 'install' target as root
   become: yes
   make:
-    chdir: "{{ ranger_download_directory }}"
+    chdir: "{{ ranger.download_directory }}"
     target: install
   when: ansible_python_version[:1] == '3'
 
@@ -33,7 +33,7 @@
   become: yes
   command: python3 setup.py install --optimize=1
   args:
-    chdir: "{{ ranger_download_directory }}"
+    chdir: "{{ ranger.download_directory }}"
     creates: '/usr/local/bin/ranger'
   when: not install_python3.failed
 
@@ -41,6 +41,6 @@
   become: yes
   command: python setup.py install --optimize=1
   args:
-    chdir: "{{ ranger_download_directory }}"
+    chdir: "{{ ranger.download_directory }}"
     creates: '/usr/local/bin/ranger'
   when: install_python3.failed