Ensure journal file header is present before invoking capture

custom/capture.el

@@ -5,6 +5,7 @@
 
     (defun findread ()
       "Find or create heading for read books"
+      (filedate)
       (goto-char (point-min))
       (if (not (search-forward "** read" nil t))
           (if (not (search-forward "* books" nil t))
@@ -15,6 +16,7 @@
 
     (defun findacquired ()
       "Find or create heading for acquired books"
+      (filedate)
       (goto-char (point-min))
       (if (not (search-forward "** acquired" nil t))
           (if (not (search-forward "* books" nil t))
@@ -25,6 +27,7 @@
 
     (defun findwatched ()
       "Find or create heading for watched films"
+      (filedate)
       (goto-char (point-min))
       (if (not (search-forward "** watched" nil t))
           (if (not (search-forward "* films" nil t))
@@ -35,6 +38,7 @@
 
     (defun findvisited ()
       "Find or create heading for visited places"
+      (filedate)
       (goto-char (point-min))
       (if (not (search-forward "** visited" nil t))
           (if (not (search-forward "* places" nil t))
@@ -45,6 +49,7 @@
 
     (defun finddw ()
       "Find or create heading for DW posts"
+      (filedate)
       (goto-char (point-min))
       (if (not (search-forward "* dw" nil t))
           (progn