Cleaned up exception handling

git-svn-id: http://munki.googlecode.com/svn/trunk@357 a4e17f2e-e282-11dd-95e1-755cbddbdd66

code/client/managedsoftwareupdate

@@ -57,7 +57,7 @@ def clearLastNotifiedDate():
                        '/Library/Preferences/ManagedInstalls', 
                        'LastNotifiedDate']
                 retcode = subprocess.call(cmd)
-    except:
+    except FoundationPlist.NSPropertyListSerializationException:
         pass
         
         
@@ -66,7 +66,7 @@ def createDirsIfNeeded(dirlist):
         if not os.path.exists(directory):
             try:
                 os.mkdir(directory)
-            except:
+            except OSError, IOError:
                 print >>sys.stderr, "ERROR: Could not create %s" % directory
                 return False
 
@@ -343,7 +343,7 @@ def main():
             pl = FoundationPlist.readPlist(installinfo)
             updatesavailable = len(pl.get('removals',[])) or \
                                len(pl.get('managed_installs',[]))
-        except:
+        except FoundationPlist.NSPropertyListSerializationException:
             munkicommon.display_error("Install info at %s is invalid." %
                                        installinfo)