[hackers] [libgrapheme] Clarify a comment in gen/case.c || Laslo Hunhold

[git]

commit bc1dc28c09ce845291c51041b45594fef78e4eb4
Author:     Laslo Hunhold <d...@frign.de>
AuthorDate: Sat Sep 24 10:37:21 2022 +0200
Commit:     Laslo Hunhold <d...@frign.de>
CommitDate: Sat Sep 24 10:37:21 2022 +0200

    Clarify a comment in gen/case.c
    
    Signed-off-by: Laslo Hunhold <d...@frign.de>

diff --git a/gen/case.c b/gen/case.c
index 8d24514..f953fdc 100644
--- a/gen/case.c
+++ b/gen/case.c
@@ -166,7 +166,8 @@ specialcasing_callback(const char *file, char **field, 
size_t nfields,
 
        /*
         * overwrite value in "single mapping" property table by the
-        * special value 0x110000 + (offset in special case array)
+        * special value 0x110000 + (offset in special case array),
+        * even if the special case has length 1
         */
        prop_upper[cp].property = (int_least64_t)(UINT32_C(0x110000) + (sclen - 
1));
        prop_lower[cp].property = (int_least64_t)(UINT32_C(0x110000) + (sclen - 
1));