Use a space between the number and the unit in quantities like "500 ms" in the

Reference Guide. See http://physics.nist.gov/Pubs/SP811/sec07.html#7.2 for a
section of an SI style guide with this rule.

docs/scripting.xml

@@ -2483,7 +2483,7 @@ containing the returned data (or the case of a failure, an error message).</para
 		Sets the time, in milliseconds, after which input and
 		output operations on a socket should time out and
 		return. The default value is 30,000 (30 seconds). The lowest
-		allowed value is 10ms, since this is 
+		allowed value is 10&nbsp;ms, since this is 
 		the granularity of NSE network I/O.
 	      </para>
 	    </listitem>