[gmime] Remove bogus extra / from sed commands (#64)

[Rico Tzschichholz <ricotz src gnome org>]

commit b8485678be773dab281c27933a510a59b2a81aba
Author: Olly Betts <ojwbetts gmail com>
Date:   Sat Oct 19 00:14:55 2019 +1300

    Remove bogus extra / from sed commands (#64)
    
    Fixes error:
    sed: -e expression #10, char 75: unknown option to `s'

 tools/gmime-port-2-6-to-3-0.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/tools/gmime-port-2-6-to-3-0.sh b/tools/gmime-port-2-6-to-3-0.sh
index 47a09744..208c2784 100755
--- a/tools/gmime-port-2-6-to-3-0.sh
+++ b/tools/gmime-port-2-6-to-3-0.sh
@@ -12,8 +12,8 @@ do
        -e "s/g_mime_content_type_to_string/g_mime_content_type_get_mime_type/g" \
        -e "s/g_mime_content_type_get_params/g_mime_content_type_get_parameters/g" \
        -e "s/g_mime_content_disposition_new_from_string/g_mime_content_disposition_parse/g" \
-       -e "s/g_mime_content_disposition_to_string/g_mime_content_disposition_encode/g/" \
-       -e "s/g_mime_content_disposition_get_params/g_mime_content_disposition_get_parameters/g/" \
+       -e "s/g_mime_content_disposition_to_string/g_mime_content_disposition_encode/g" \
+       -e "s/g_mime_content_disposition_get_params/g_mime_content_disposition_get_parameters/g" \
        -e "s/internet_address_list_parse_string/internet_address_list_parse/g" \
        -e "s/GMimeCertificateTrust/GMimeTrust/g" \
        -e "s/GMIME_CERTIIFCATE_TRUST_NONE/GMIME_TRUST_UNKNOWN/g" \