[gimp/gimp-2-10] plug-ins: fix incorrect formatting when switching between m and ft for gps altitude.

[Jacob Boerema <jboerema src gnome org>]

commit 8b26c7e23d935e59a84dec837e262a1df83f9323
Author: Jacob Boerema <jgboerema gmail com>
Date:   Mon Nov 30 17:32:49 2020 -0500

    plug-ins: fix incorrect formatting when switching between m and ft for gps altitude.
    
    (cherry picked from commit 3ce15f534b1b3ed2819ca0b35bba3d35c7ebcb0e)

 plug-ins/metadata/metadata-editor.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/plug-ins/metadata/metadata-editor.c b/plug-ins/metadata/metadata-editor.c
index 3189f11976..05c73585c1 100644
--- a/plug-ins/metadata/metadata-editor.c
+++ b/plug-ins/metadata/metadata-editor.c
@@ -5768,7 +5768,7 @@ gpsaltsys_combo_callback (GtkComboBoxText *combo,
           alt_d = atof (gtk_entry_get_text (GTK_ENTRY (entry)));
           alt_d = (alt_d * (12 * 2.54)) / 100;
 
-          g_snprintf (alt_str, sizeof (alt_str), "%2f", (float)alt_d);
+          g_snprintf (alt_str, sizeof (alt_str), "%.2f", (float)alt_d);
 
           gtk_entry_set_text (GTK_ENTRY (entry), alt_str);
         }
@@ -5780,7 +5780,7 @@ gpsaltsys_combo_callback (GtkComboBoxText *combo,
           alt_d = atof (gtk_entry_get_text (GTK_ENTRY (entry)));
           alt_d = alt_d * 3.28;
 
-          g_snprintf (alt_str, sizeof (alt_str), "%2f", (float)alt_d);
+          g_snprintf (alt_str, sizeof (alt_str), "%.2f", (float)alt_d);
 
           gtk_entry_set_text (GTK_ENTRY (entry), alt_str);
         }