BFU: Mark format strings in struct listbox_ops_messages.

With regular comments in the definition of the structure itself,
and with xgettext:c-format comments in constants of that type,
if xgettext would otherwise guess wrong; so that translators
will know they'll have to double any percent signs they add.
I didn't regenerate PO files, though.

src/bfu/listbox.h

@@ -45,18 +45,18 @@ struct listbox_context {
 };
 
 struct listbox_ops_messages {
-	unsigned char *cant_delete_item;
-	unsigned char *cant_delete_used_item;
-	unsigned char *cant_delete_folder;
-	unsigned char *cant_delete_used_folder;
-	unsigned char *delete_marked_items_title;
-	unsigned char *delete_marked_items;
-	unsigned char *delete_folder_title;
-	unsigned char *delete_folder;
-	unsigned char *delete_item_title;
-	unsigned char *delete_item;
-	unsigned char *clear_all_items_title;
-	unsigned char *clear_all_items;
+	unsigned char *cant_delete_item;          /* %s = text of item */
+	unsigned char *cant_delete_used_item;     /* %s = text of item */
+	unsigned char *cant_delete_folder;        /* %s = text of item */
+	unsigned char *cant_delete_used_folder;   /* %s = text of item */
+	unsigned char *delete_marked_items_title; /* not a format string */
+	unsigned char *delete_marked_items;	  /* not a format string */
+	unsigned char *delete_folder_title;	  /* not a format string */
+	unsigned char *delete_folder;		  /* %s = text of item */
+	unsigned char *delete_item_title;	  /* not a format string */
+	unsigned char *delete_item;		  /* %s = text of item */
+	unsigned char *clear_all_items_title;	  /* not a format string */
+	unsigned char *clear_all_items;		  /* not a format string */
 };
 
 /* TODO: We can maybe find a better way of figuring out whether a user of a

src/bookmarks/dialogs.c

@@ -129,7 +129,7 @@ static struct listbox_ops_messages bookmarks_messages = {
 	N_("Delete the folder \"%s\" and all bookmarks in it?"),
 	/* delete_item_title */
 	N_("Delete bookmark"),
-	/* delete_item */
+	/* delete_item; xgettext:c-format */
 	N_("Delete this bookmark?"),
 	/* clear_all_items_title */
 	N_("Clear all bookmarks"),

src/cache/dialogs.c

@@ -201,7 +201,7 @@ static struct listbox_ops_messages cache_messages = {
 	NULL,
 	/* delete_item_title */
 	N_("Delete cache entry"),
-	/* delete_item */
+	/* delete_item; xgettext:c-format */
 	N_("Delete this cache entry?"),
 	/* clear_all_items_title */
 	NULL,

src/cookies/dialogs.c

@@ -215,7 +215,7 @@ static struct listbox_ops_messages cookies_messages = {
 	N_("Delete all cookies from domain \"%s\"?"),
 	/* delete_item_title */
 	N_("Delete cookie"),
-	/* delete_item */
+	/* delete_item; xgettext:c-format */
 	N_("Delete this cookie?"),
 	/* clear_all_items_title */
 	N_("Clear all cookies"),

src/dialogs/download.c

@@ -425,7 +425,7 @@ static struct listbox_ops_messages download_messages = {
 	NULL,
 	/* delete_item_title */
 	N_("Interrupt download"),
-	/* delete_item */
+	/* delete_item; xgettext:c-format */
 	N_("Interrupt this download?"),
 	/* clear_all_items_title */
 	N_("Interrupt all downloads"),

src/formhist/dialogs.c

@@ -134,7 +134,7 @@ static struct listbox_ops_messages formhist_messages = {
 	NULL,
 	/* delete_item_title */
 	N_("Delete form"),
-	/* delete_item */
+	/* delete_item; xgettext:c-format */
 	N_("Delete this form?"),
 	/* clear_all_items_title */
 	N_("Clear all forms"),

src/globhist/dialogs.c

@@ -119,7 +119,7 @@ static struct listbox_ops_messages globhist_messages = {
 	NULL,
 	/* delete_item_title */
 	N_("Delete history entry"),
-	/* delete_item */
+	/* delete_item; xgettext:c-format */
 	N_("Delete this history entry?"),
 	/* clear_all_items_title */
 	N_("Clear all history entries"),

src/protocol/auth/dialogs.c

@@ -229,7 +229,7 @@ static struct listbox_ops_messages http_auth_messages = {
 	NULL,
 	/* delete_item_title */
 	N_("Delete auth entry"),
-	/* delete_item */
+	/* delete_item; xgettext:c-format */
 	N_("Delete this auth entry?"),
 	/* clear_all_items_title */
 	N_("Clear all auth entries"),