IDEA-121383 Intellij EAP 1342 Does not start on Mac

Change-Id: I8fbcbc61efa815f8c3e5f5caf6268b12a0fb8f63
(cherry picked from commit 085fdb588ba8b67b7f088c3557df36ace1a86cc7)

build/scripts/utils.gant

diff --git a/build/scripts/utils.gant b/build/scripts/utils.gant
index d03328e..55e3c29 100644
--- a/build/scripts/utils.gant
+++ b/build/scripts/utils.gant
@@ -358,7 +358,7 @@
   String archs = """
     <key>LSArchitecturePriority</key>
     <array>"""
-  (args.archs != null ? args.archs : ["64_x86", "i386"]).each {
+  (args.archs != null ? args.archs : ["x86_64", "i386"]).each {
     archs += "<string>${it}</string>"
   }
   archs +="</array>\n"