[FIX] base.css: make sure read-only char field contents is always visible

min-height seems the original intention of the
CSS, while height is too restrictive and hides
parts of the field value when it is very long
(and switching to edit mode is not always an
option, e.g. for read-only records like emails)

bzr revid: odo@openerp.com-20120426161133-glgkx7h6hdyyxw24

addons/web/static/src/css/base.css

@@ -1371,7 +1371,7 @@ label.error {
 .openerp .oe_forms_readonly .oe_form_field_many2one {
     padding: 3px 2px 2px 2px;
     background-color: white;
-    height: 17px;
+    min-height: 17px;
 }
 .openerp .oe_form_readonly .oe_form_frame_cell .field_text {
     height: auto;