Per #3075, adding a hotfix to main_v12.0 that should have been includ…

…ed in the #3076 pull request. The logic for converting to camel case was in the wrong order and the details of this are described in this comment: #3078 (comment)

src/basic/vx_cal/unix_to_mdyhms.cc

@@ -108,10 +108,10 @@ int month = -1;
 
 // Convert to camel case
 string t_month_str(month_str);
-transform(t_month_str.begin(), t_month_str.begin() + 1,
-          t_month_str.begin(), ::toupper);
 transform(t_month_str.begin(), t_month_str.end(),
           t_month_str.begin(), ::tolower);
+transform(t_month_str.begin(), t_month_str.begin() + 1,
+          t_month_str.begin(), ::toupper);
 
 for (int idx=1; idx<=12; idx++) {
    if (t_month_str == short_month_name[idx] ||