-#: actions/all.php:79 actions/allrss.php:68
-#: actions/apiaccountupdatedeliverydevice.php:114
-#: actions/apiaccountupdateprofile.php:105
-#: actions/apiaccountupdateprofilebackgroundimage.php:116
-#: actions/apiaccountupdateprofileimage.php:105 actions/apiblockcreate.php:97
-#: actions/apiblockdestroy.php:96 actions/apidirectmessage.php:77
-#: actions/apidirectmessagenew.php:74 actions/apigroupcreate.php:113
-#: actions/apigroupismember.php:91 actions/apigroupjoin.php:100
-#: actions/apigroupleave.php:100 actions/apigrouplist.php:73
-#: actions/apistatusesupdate.php:228 actions/apisubscriptions.php:87
-#: actions/apitimelinefavorites.php:72 actions/apitimelinefriends.php:174
-#: actions/apitimelinehome.php:80 actions/apitimelinementions.php:80
-#: actions/apitimelineuser.php:82 actions/avatarbynickname.php:75
-#: actions/favoritesrss.php:74 actions/foaf.php:40 actions/foaf.php:58
-#: actions/hcard.php:67 actions/microsummary.php:62 actions/newmessage.php:116
-#: actions/otp.php:76 actions/remotesubscribe.php:145
-#: actions/remotesubscribe.php:154 actions/replies.php:73
-#: actions/repliesrss.php:38 actions/rsd.php:116 actions/showfavorites.php:105
-#: actions/userbyid.php:74 actions/usergroups.php:93 actions/userrss.php:40
-#: actions/xrds.php:71 lib/command.php:478 lib/galleryaction.php:59
+#. TRANS: Client error when user not found for an action.
+#. TRANS: Client error when user not found for an rss related action.
+#. TRANS: Client error displayed when no existing user is provided for a user's delivery device setting.
+#. TRANS: Client error displayed if a user could not be found.
+#. TRANS: Client error when user not found updating a profile background image.
+#. TRANS: Client error displayed updating profile image without having a user object.
+#. TRANS: Client error when user not found for an API action to remove a block for a user.
+#. TRANS: Client error given when a user was not found (404).
+#. TRANS: Client error when user not found for an API direct message action.
+#. TRANS: Client error given when a user was not found (404).
+#. TRANS: Client error displayed when checking group membership for a non-existing user.
+#. TRANS: Client error displayed when trying to have a non-existing user join a group.
+#. TRANS: Client error displayed when trying to have a non-existing user leave a group.
+#. TRANS: Client error displayed when updating a status for a non-existing user.
+#. TRANS: Client error displayed when requesting a list of followers for a non-existing user.
+#. TRANS: Client error displayed when requesting most recent favourite notices by a user for a non-existing user.
+#. TRANS: Client error displayed when requesting dents of a user and friends for a user that does not exist.
+#. TRANS: Client error displayed when requesting most recent dents by user and friends for a non-existing user.
+#. TRANS: Client error displayed when requesting most recent mentions for a non-existing user.
+#. TRANS: Client error displayed requesting most recent notices for a non-existing user.
+#. TRANS: Client error displayed trying to get an avatar for a non-existing user.
+#. TRANS: Error text shown when trying to send a direct message to a user that does not exist.
+#: actions/all.php:80 actions/allrss.php:69
+#: actions/apiaccountupdatedeliverydevice.php:110
+#: actions/apiaccountupdateprofile.php:103
+#: actions/apiaccountupdateprofilebackgroundimage.php:118
+#: actions/apiaccountupdateprofileimage.php:104 actions/apiatomservice.php:60
+#: actions/apiblockcreate.php:95 actions/apiblockdestroy.php:94
+#: actions/apidirectmessage.php:75 actions/apidirectmessagenew.php:72
+#: actions/apigroupcreate.php:111 actions/apigroupismember.php:89
+#: actions/apigroupjoin.php:98 actions/apigroupleave.php:98
+#: actions/apigrouplist.php:70 actions/apistatusesupdate.php:230
+#: actions/apisubscriptions.php:85 actions/apitimelinefavorites.php:70
+#: actions/apitimelinefriends.php:173 actions/apitimelinehome.php:78
+#: actions/apitimelinementions.php:77 actions/apitimelineuser.php:79
+#: actions/avatarbynickname.php:79 actions/favoritesrss.php:74
+#: actions/foaf.php:40 actions/foaf.php:58 actions/hcard.php:67
+#: actions/microsummary.php:62 actions/newmessage.php:116 actions/otp.php:76
+#: actions/remotesubscribe.php:145 actions/remotesubscribe.php:154
+#: actions/replies.php:73 actions/repliesrss.php:38 actions/rsd.php:116
+#: actions/showfavorites.php:105 actions/userbyid.php:74
+#: actions/usergroups.php:93 actions/userrss.php:40 actions/userxrd.php:59
+#: actions/xrds.php:71 lib/command.php:497 lib/galleryaction.php:59