Fix some http->https urls

scripts/http-grep.nse

@@ -20,16 +20,14 @@ The script searches for email and ip by default.
 -- nmap -p 80 www.example.com --script http-grep --script-args='match="[A-Za-z0-9%.%%%+%-]+@[A-Za-z0-9%.%%%+%-]+%.%w%w%w?%w?",breakonmatch'
 -- nmap -p 80 www.example.com --script http-grep --script-args 'http-grep.builtins ={"mastercard", "discover"}, http-grep.url="example.html"'
 -- @output
--- PORT   STATE SERVICE REASON
--- 80/tcp open  http    syn-ack
 -- | http-grep:
--- |   (1) http://nmap.org/book/man-bugs.html:
+-- |   (1) https://nmap.org/book/man-bugs.html:
 -- |     (1) email:
 -- |       + dev@nmap.org
--- |   (1) http://nmap.org/book/install.html:
+-- |   (1) https://nmap.org/book/install.html:
 -- |     (1) email:
 -- |       + fyodor@nmap.org
--- |   (16) http://nmap.org/changelog.html:
+-- |   (16) https://nmap.org/changelog.html:
 -- |     (7) ip:
 -- |       + 255.255.255.255
 -- |       + 10.99.24.140
@@ -48,7 +46,7 @@ The script searches for email and ip by default.
 -- |       + president@whitehouse.gov
 -- |       + haesslich@loyalty.org
 -- |       + rchong@fcc.gov
--- |   (6) http://nmap.org/5/#5changes:
+-- |   (6) https://nmap.org/5/#5changes:
 -- |     (6) ip:
 -- |       + 207.68.200.30
 -- |       + 64.13.134.52
@@ -76,17 +74,17 @@ The script searches for email and ip by default.
 -- visa, amex, ssn and ip addresses. If you just put in script-args http-grep.builtins then all will be enabled.
 --
 -- @xmloutput
--- <table key="(1) http://nmap.org/book/man-bugs.html">
+-- <table key="(1) https://nmap.org/book/man-bugs.html">
 --   <table key="(1) email">
 --     <elem>+ dev@nmap.org</elem>
 --   </table>
 -- </table>
--- <table key="(1) http://nmap.org/book/install.html">
+-- <table key="(1) https://nmap.org/book/install.html">
 --   <table key="(1) email">
 --     <elem>+ fyodor@nmap.org</elem>
 --   </table>
 -- </table>
--- <table key="(16) http://nmap.org/changelog.html">
+-- <table key="(16) https://nmap.org/changelog.html">
 --   <table key="(7) ip">
 --     <elem>+ 255.255.255.255</elem>
 --     <elem>+ 10.99.24.140</elem>
@@ -108,7 +106,7 @@ The script searches for email and ip by default.
 --     <elem>+ rchong@fcc.gov</elem>
 --   </table>
 -- </table>
--- <table key="(6) http://nmap.org/5/#5changes">
+-- <table key="(6) https://nmap.org/5/#5changes">
 --   <table key="(6) ip">
 --     <elem>+ 207.68.200.30</elem>
 --     <elem>+ 64.13.134.52</elem>