function CSR_Setup() {
    var overridectx = {};
    overridectx.Templates = {};
    overridectx.Templates.Fields = {
        "LinkTitle": { "View": CSR_EditTask }
    };
    SPClientTemplates.TemplateManager.RegisterTemplateOverrides(overridectx);
}

function CSR_EditTask(ctx) {
    var fieldValue = ctx.CurrentItem.Title;
    var url = String.format('{0}&ID={1}', ctx.editFormUrl, ctx.CurrentItem.ID);

    return String.format('<a class="ms-listlink" href="{0}" onclick="EditLink2(this, 6);return false;" onfocus="OnLink(this) target="_self"">{1}</a>', url, fieldValue);
}

SP.SOD.executeFunc("clienttemplates.js", "SPClientTemplates", CSR_Setup);

/sites/sitename/Lists/ListName/EditForm.aspx