Fix build error with -Werror=format-security
geometry.c: In function '_FindWidget':
geometry.c:66:5: error: format not a string literal and no format arguments [-Werror=format-security]
sprintf(msg, res_labels[14]);
^
geometry.c: In function 'DisplayChild':
geometry.c:106:2: error: format not a string literal and no format arguments [-Werror=format-security]
sprintf(msg, res_labels[13]);
^
cc1: some warnings being treated as errors
Gbp-Pq: Name editres-format-strings.diff
Julien Cristau