MH_EXECUTE runs under lldb, fails under shell

mmap  addr=0x100000000  len=0x3003  prot=0x3  flags=0x1012  fd=-1  off=0x0  reloc=0x0
maddr=0xffffffffffffffff  addr=0x100000000
	modified:   p_mach.cpp
	modified:   p_mach_enum.h
	modified:   stub/src/amd64-darwin.macho-entry.S
	modified:   stub/src/amd64-darwin.macho-fold.S
	modified:   stub/src/amd64-darwin.macho-main.c

src/p_mach_enum.h

@@ -58,7 +58,9 @@
     };
     enum { // filetype
         MH_EXECUTE = 2,
-        MH_DYLIB   = 6,
+        MH_PRELOAD = 5,     /* preloaded executable */
+        MH_DYLIB   = 6,     /* dynamically bound shared library */
+        MH_DYLINKER= 7,     /* /usr/bin/dyld */
         MH_BUNDLE  = 8      /* dynamically bound bundle file */
     };
     enum { // flags