Update bare exceptions to specify Exception.

This will keep us from accidentally catching program-exiting exceptions
like KeyboardInterupt and SystemExit.

lib/ansible/plugins/lookup/_redis_kv.py

@@ -88,6 +88,6 @@ class LookupModule(LookupBase):
                 if res is None:
                     res = ""
                 ret.append(res)
-            except:
+            except Exception:
                 ret.append("")  # connection failed or key not found
         return ret

lib/ansible/plugins/lookup/dig.py

@@ -222,7 +222,7 @@ class LookupModule(LookupBase):
                     try:
                         socket.inet_aton(ns)
                         nameservers.append(ns)
-                    except:
+                    except Exception:
                         try:
                             nsaddr = dns.resolver.query(ns)[0].address
                             nameservers.append(nsaddr)
@@ -233,7 +233,7 @@ class LookupModule(LookupBase):
             if '=' in t:
                 try:
                     opt, arg = t.split('=')
-                except:
+                except Exception:
                     pass
 
                 if opt == 'qtype':
@@ -251,7 +251,7 @@ class LookupModule(LookupBase):
             if '/' in t:
                 try:
                     domain, qtype = t.split('/')
-                except:
+                except Exception:
                     domain = t
             else:
                 domain = t

lib/ansible/plugins/lookup/passwordstore.py

@@ -116,7 +116,7 @@ def check_output2(*popenargs, **kwargs):
     process = subprocess.Popen(*popenargs, stdout=subprocess.PIPE, stderr=subprocess.PIPE, **kwargs)
     try:
         b_out, b_err = process.communicate(b_inputdata)
-    except:
+    except Exception:
         process.kill()
         process.wait()
         raise