Why modline is not available?

Hi, I have the following modline in a .sh file. It works in machine A,
but on machine B. (All .vimrc, .vim/ are the same on both machines.)

# vim: set noexpandtab tabstop=2:

Vim on machine B is of the following version. Does anybody know why
modline is not working on machine B?

~$ vim --version
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Jan 2 2014 19:39:47)
Included patches: 1-52
Modified by pkg-vim-maintainers@lists.alioth.debian.org
Compiled by buildd@
Huge version with GTK2-GNOME GUI. Features included (+) or not (-):
+acl +farsi +mouse_netterm +syntax
+arabic +file_in_path +mouse_sgr +tag_binary
+autocmd +find_in_path -mouse_sysmouse +tag_old_static
+balloon_eval +float +mouse_urxvt -tag_any_white
+browse +folding +mouse_xterm +tcl
++builtin_terms -footer +multi_byte +terminfo
+byte_offset +fork() +multi_lang +termresponse
+cindent +gettext -mzscheme +textobjects
+clientserver -hangul_input +netbeans_intg +title
+clipboard +iconv +path_extra +toolbar
+cmdline_compl +insert_expand +perl +user_commands
+cmdline_hist +jumplist +persistent_undo +vertsplit
+cmdline_info +keymap +postscript +virtualedit
+comments +langmap +printer +visual
+conceal +libcall +profile +visualextra
+cryptv +linebreak +python +viminfo
+cscope +lispindent -python3 +vreplace
+cursorbind +listcmds +quickfix +wildignore
+cursorshape +localmap +reltime +wildmenu
+dialog_con_gui +lua +rightleft +windows
+diff +menu +ruby +writebackup
+digraphs +mksession +scrollbind +X11
+dnd +modify_fname +signs -xfontset
-ebcdic +mouse +smartindent +xim
+emacs_tags +mouseshape -sniff +xsmp_interact
+eval +mouse_dec +startuptime +xterm_clipboard
+ex_extra +mouse_gpm +statusline -xterm_save
+extra_search -mouse_jsbterm -sun_workshop +xpm
system vimrc file: "$VIM/vimrc"
user vimrc file: "$HOME/.vimrc"
2nd user vimrc file: "~/.vim/vimrc"
user exrc file: "$HOME/.exrc"
system gvimrc file: "$VIM/gvimrc"
user gvimrc file: "$HOME/.gvimrc"
2nd user gvimrc file: "~/.vim/gvimrc"
system menu file: "$VIMRUNTIME/menu.vim"
fall-back for $VIM: "/usr/share/vim"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK
-pthread -I/usr/include/gtk-2.0
-I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0
-I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0
-I/usr/include/pango-1.0 -I/usr/include/gio-unix-2.0/
-I/usr/include/freetype2 -I/usr/include/glib-2.0
-I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/pixman-1
-I/usr/include/libpng12 -I/usr/include/harfbuzz -pthread -DORBIT2=1
-D_REENTRANT -I/usr/include/libgnomeui-2.0 -I/usr/include/libart-2.0
-I/usr/include/gconf/2 -I/usr/include/gnome-keyring-1
-I/usr/include/libgnome-2.0 -I/usr/include/libbonoboui-2.0
-I/usr/include/libgnomecanvas-2.0 -I/usr/include/gtk-2.0
-I/usr/include/gdk-pixbuf-2.0 -I/usr/include/gnome-vfs-2.0
-I/usr/lib/x86_64-linux-gnu/gnome-vfs-2.0/include
-I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include
-I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
-I/usr/include/orbit-2.0 -I/usr/include/libbonobo-2.0
-I/usr/include/bonobo-activation-2.0 -I/usr/include/libxml2
-I/usr/include/pango-1.0 -I/usr/include/gail-1.0
-I/usr/include/harfbuzz -I/usr/include/freetype2
-I/usr/include/atk-1.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include
-I/usr/include/cairo -I/usr/include/gio-unix-2.0/
-I/usr/include/pixman-1 -I/usr/include/libpng12 -g -O2
-fstack-protector --param=ssp-buffer-size=4 -Wformat
-Werror=format-security -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
-I/usr/include/tcl8.6 -D_REENTRANT=1 -D_THREAD_SAFE=1
-D_LARGEFILE64_SOURCE=1
Linking: gcc -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -rdynamic
-Wl,-export-dynamic -Wl,-E -Wl,-Bsymbolic-functions -Wl,-z,relro
-Wl,--as-needed -o vim -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0
-lgio-2.0 -lpangoft2-1.0 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lcairo
-lpango-1.0 -lfontconfig -lgobject-2.0 -lglib-2.0 -lfreetype
-lgnomeui-2 -lSM -lICE -lbonoboui-2 -lgnomevfs-2 -lgnomecanvas-2
-lgnome-2 -lpopt -lbonobo-2 -lbonobo-activation -lORBit-2 -lart_lgpl_2
-lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0
-lpangocairo-1.0 -lgdk_pixbuf-2.0 -lcairo -lpango-1.0 -lfontconfig
-lfreetype -lgconf-2 -lgthread-2.0 -lgmodule-2.0 -lgobject-2.0
-lglib-2.0 -lSM -lICE -lXpm -lXt -lX11 -lXdmcp -lSM -lICE -lm
-ltinfo -lnsl -lselinux -lacl -lattr -lgpm -ldl -L/usr/lib -llua5.2
-Wl,-E -fstack-protector -L/usr/local/lib -L/usr/lib/perl/5.18/CORE
-lperl -ldl -lm -lpthread -lcrypt
-L/usr/lib/python2.7/config-x86_64-linux-gnu -lpython2.7 -lpthread
-ldl -lutil -lm -Xlinker -export-dynamic -Wl,-O1
-Wl,-Bsymbolic-functions -L/usr/lib/x86_64-linux-gnu -ltcl8.6 -ldl
-lz -lpthread -lieee -lm -lruby-1.9.1 -lpthread -lrt -ldl -lcrypt -lm
-L/usr/lib

--
Regards,
Peng

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