Correct position of instrument line to ensure that the call to lamp_journal works on all cases

lamp_mac/D2B/straight_2d.pro

@@ -50,8 +50,8 @@ pasp = 1
 if n_elements(datp) eq 0 then take_datp, datp else pasp = 0
 
 ; Detector distance
+inst = strlowcase((strsplit(datp.other_tit, /extract))[0])
 if n_elements(e_d) eq 1 then r = e_d else begin
-   inst = strlowcase((strsplit(datp.other_tit, /extract))[0])
    case inst of  
       'd2b':   r = 130.0
       'salsa': r = 100.0