move install pb to a handler

roles/shell/handlers/main.yml

@@ -0,0 +1,3 @@
+---
+
+- include: pb.yml

roles/shell/handlers/pb.yml

@@ -0,0 +1,7 @@
+# install pb
+---
+- name: install pb
+  make:
+    chdir: /usr/src/pb
+    target: install
+  become: yes

roles/shell/tasks/pb.yml

@@ -2,12 +2,8 @@
 ---
 - name: clone pb
   git:
-    repo: 'https://tildegit.org/tomasino/pb'
+    repo: https://tildegit.org/tomasino/pb
     dest: /usr/src/pb
     force: yes
-
-- name: install pb
-  make:
-    chdir: /usr/src/pb
-    target: install
-  become: yes
+  notify:
+    - install pb