Bug 196659 missing word in certs_help.html

patch by magicdice@hotmail.com r=oeschger a=asa

suite/locales/en-US/chrome/common/help/certs_help.xhtml

@@ -238,7 +238,7 @@ Here you specify whether you want to trust the selected certificate for identify
 
 <p>The root and intermediate CAs all appear under the same organization. The root certificate is the one that lists itself as the the issuer.
 
-<p><b>If you download an intermediate CA:</b> If you download an intermediate CA certificate that chains to a root certificate already marked as trusted in your browser, you dont have indicate what purposes you trust it for. Intermediate certificates automatically inherit the trust settings of their roots.
+<p><b>If you download an intermediate CA:</b> If you download an intermediate CA certificate that chains to a root certificate already marked as trusted in your browser, you don't have to indicate what purposes you trust it for. Intermediate certificates automatically inherit the trust settings of their roots.
 
 
 <p>&nbsp;</p><hr><a NAME="Edit_CA_Certificate_Settings"></a>