Show exec's searchpath attribute as merged.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277497 13f79535-47bb-0310-9956-ffa450edef68

WHATSNEW

@@ -55,9 +55,6 @@ Other changes:
 * It is now possible to specify the pattern created/parsed by <checksum>.
   Bugzilla Report 16539.
 
-* Added searchpath attribute to <exec> for searching path variable(s)
-  when resolveexecutable = true.
-
 * Added -nouserlib option to allow running ant without automatically loading
   up ${user.dir}/.lib/ant. This is useful when compiling ant, and antlibs.
   Modified the build.sh and build.bat to use the option.
@@ -174,6 +171,9 @@ Other changes:
 
 * Changed default tempdir for <javac> from user.dir to java.io.tmpdir.
 
+* Added searchpath attribute to <exec> for searching path variable(s)
+  when resolveexecutable = true.
+
 Fixed bugs:
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