Fix code-blocks to use correct syntax highlighting

lib/ansible/modules/packaging/os/dnf.py

@@ -124,7 +124,7 @@ EXAMPLES = '''
 
 - name: upgrade all packages
   dnf:
-    name: *
+    name: "*"
     state: latest
 
 - name: install the nginx rpm from a remote repo

lib/ansible/modules/packaging/os/openbsd_pkg.py

@@ -126,7 +126,7 @@ EXAMPLES = '''
 
 # Update all packages on the system
 - openbsd_pkg:
-    name: *
+    name: '*'
     state: latest
 
 # Purge a package and it's configuration files

lib/ansible/modules/packaging/os/portage.py

@@ -208,12 +208,12 @@ EXAMPLES = '''
 
 # Re-install world from binary packages only and do not allow any compiling
 - portage:
-    package: @world
+    package: '@world'
     usepkgonly: yes
 
 # Sync repositories and update world
 - portage:
-    package: @world
+    package: '@world'
     update: yes
     deep: yes
     sync: yes

lib/ansible/modules/packaging/os/zypper.py

@@ -150,12 +150,12 @@ EXAMPLES = '''
 
 # Update all packages
 - zypper:
-    name: *
+    name: '*'
     state: latest
 
 # Apply all available patches
 - zypper:
-    name: *
+    name: '*'
     state: latest
     type: patch
 

lib/ansible/modules/packaging/os/zypper_repository.py

@@ -135,7 +135,7 @@ EXAMPLES = '''
 
 # Refresh all repos
 - zypper_repository:
-    repo: *
+    repo: '*'
     runrefresh: yes
 
 # Add a repo and add it's gpg key