configure: PRODUCTNAME changes on --enable-release-build,

... not on --enable-dbgutil as erroneously assumed in
2c1f814d.

Apparently the other (non-naming) changes of omitting --enable-release-build
are "DEVELOPMENTPRODUCT 1" which causes "WRITE_REGISTRY" to be set to 0 and
"LOCALUSERDIR $ORIGIN/..".

Change-Id: Ib3ea3b7f21523773490836853d155985b68719ee

configure.ac

@@ -12139,7 +12139,7 @@ fi
 AC_SUBST(WITH_COMPAT_OOWRAPPERS)
 
 AC_MSG_CHECKING([for product name])
-if test -n "$enable_dbgutil" -a "$enable_dbgutil" != "no"; then
+if test "$enable_release_build" = "" -o "$enable_release_build" = "no"; then
     PRODUCTNAME=AC_PACKAGE_NAME"Dev"
 else
     PRODUCTNAME=AC_PACKAGE_NAME