After wrapping gnc-fq-check and gnc-fq-helper we can no longer execute them
with perl, so execute them directly instead.

diff -ur gnucash-3.2.old/libgnucash/scm/price-quotes.scm gnucash-3.2/libgnucash/scm/price-quotes.scm
--- gnucash-3.2.old/libgnucash/scm/price-quotes.scm	2018-09-15 00:48:33.718389646 -0400
+++ gnucash-3.2/libgnucash/scm/price-quotes.scm	2018-09-15 13:51:49.249862724 -0400
@@ -74,7 +74,7 @@
     (define (start-program)
       (if (not (string-null? gnc:*finance-quote-check*))
           (set! program (gnc-spawn-process-async
-                         (list "perl" "-w" gnc:*finance-quote-check*) #t))))
+                         (list gnc:*finance-quote-check*) #t))))
 
     (define (get-sources)
       (if (not (null? program))
@@ -158,7 +158,7 @@
     (define (start-quoter)
       (if (not (string-null? gnc:*finance-quote-helper*))
           (set! quoter (gnc-spawn-process-async
-                        (list "perl" "-w" gnc:*finance-quote-helper*) #t))))
+                        (list gnc:*finance-quote-helper*) #t))))
 
     (define (get-quotes)
       (if (not (null? quoter))
