Stylistic comment changes & typo corrections.

[SVN r42485]

doc/src/reference.xml

@@ -1436,10 +1436,10 @@ using stlport : <optional><replaceable>version</replaceable></optional> : <repla
       <orderedlist>
         <listitem>
           <simpara>
-            For each alternative <emphasis>condition</emphasis> is defined
-            as the set of base properies in requirements. [Note: it might be
-            better to specify the condition explicitly, as in
-            conditional requirements].
+            For each alternative <emphasis>condition</emphasis> is defined as
+            the set of base properties in requirements. [Note: it might be
+            better to specify the condition explicitly, as in conditional
+            requirements].
           </simpara>
         </listitem>
         

src/build/property.jam

@@ -87,9 +87,9 @@ rule refine ( properties * : requirements * )
     }
 }
 
-# Removes all conditional properties which conditions are not met
-# For those with met conditions, removes the condition. Properies
-# in conditions are looked up in 'context'
+# Removes all conditional properties which conditions are not met. For those
+# with met conditions, removes the condition. Properties in conditions are
+# looked up in 'context'.
 rule evaluate-conditionals-in-context ( properties * : context * )
 {
     local base ;

src/util/doc.jam

@@ -848,10 +848,10 @@ local rule scan-class (
     }
 }
 
-# Scan a module file for documentation comments. This also
-# invokes any actions assigned to the module. The actions
-# are the rules that do the actual output of the documentation.
-# This rue is invoked as the header scan rule for the module file.
+# Scan a module file for documentation comments. This also invokes any actions
+# assigned to the module. The actions are the rules that do the actual output of
+# the documentation. This rule is invoked as the header scan rule for the module
+# file.
 #
 rule scan-module (
     target # The module file.