Update version number in gvim.exe manifest. (Michael Wookey)

Makefile

@@ -81,7 +81,8 @@ DOSBIN_S =  dosbin_s
 # - Update Vim version number.  For a test version in: src/version.h, Contents,
 #   MAJOR/MINOR above, VIMMAJOR and VIMMINOR in src/Makefile, README*.txt,
 #   runtime/doc/*.txt and nsis/gvim.nsi. Other things in README_os2.txt.  For a
-#   minor/major version: src/GvimExt/GvimExt.reg, src/vim.def, src/vim16.def.
+#   minor/major version: src/GvimExt/GvimExt.reg, src/vim.def, src/vim16.def,
+#   src/gvim.exe.mnf.
 # - Correct included_patches[] in src/version.c.
 # - Compile Vim with GTK, Perl, Python, Python3, TCL, Ruby, MZscheme, Lua (if
 #   you can make it work), Cscope and "huge" features.  Exclude workshop and

src/gvim.exe.mnf

@@ -2,7 +2,7 @@
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" >
   <assemblyIdentity
     processorArchitecture="*"
-    version="7.2.0.0"
+    version="7.3.0.0"
     type="win32"
     name="Vim"
   />