[recipes] Fix number parsing

[Matthias Clasen <matthiasc src gnome org>]

commit a675abdfbe9103ffe75a37bad139d4540cdfc978
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 15 22:45:19 2017 -0400

    Fix number parsing
    
    Our number parser was unintentionally eating
    whitespace after integers, but not after other
    kinds of numbers. This was causing the space
    between amount and unit to grow every time the
    field was parsed and re-saved.

 src/gr-number.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/gr-number.c b/src/gr-number.c
index 663e75a..e108d9b 100644
--- a/src/gr-number.c
+++ b/src/gr-number.c
@@ -262,18 +262,21 @@ gr_number_parse (GrNumber  *number,
 
         if (parse_as_integer (number, &orig, FALSE, NULL)) {
                 gboolean valid;
+                char *endofint;
                 GrNumber n;
 
+                endofint = orig;
                 valid = skip_whitespace (&orig);
 
                 if (parse_as_vulgar_fraction (&n, &orig, NULL) ||
                     parse_as_fraction (&n, &orig, NULL)) {
                         gr_number_add (number, &n, number);
-                        valid = TRUE;
+                        *input = orig;
+                        return TRUE;
                 }
 
                 if (valid || *orig == '\0') {
-                        *input = orig;
+                        *input = endofint;
                         return TRUE;
                 }
         }