py3: make test-ui-color use print_function

tests/test-check-py3-compat.t

@@ -108,7 +108,6 b''
   tests/test-trusted.py not using absolute_import
   tests/test-trusted.py requires print_function
   tests/test-ui-color.py not using absolute_import
-  tests/test-ui-color.py requires print_function
   tests/test-url.py not using absolute_import
 
 #if py3exe
@@ -290,6 +289,5 b''
   tests/test-revlog-ancestry.py: invalid syntax: Missing parentheses in call to 'print' (<unknown>, line *) (glob)
   tests/test-status-inprocess.py: invalid syntax: Missing parentheses in call to 'print' (<unknown>, line *) (glob)
   tests/test-trusted.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
-  tests/test-ui-color.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
 
 #endif

tests/test-ui-color.py

@@ -1,3 +1,4 b''
+from __future__ import print_function
 import os
 from hgext import color
 from mercurial import dispatch, ui
@@ -8,7 +9,7 b' testui.pushbuffer()'
 testui.write(('buffered\n'))
 testui.warn(('warning\n'))
 testui.write_err('error\n')
-print repr(testui.popbuffer())
+print(repr(testui.popbuffer()))
 
 # test dispatch.dispatch with the same ui object
 hgrc = open(os.environ["HGRCPATH"], 'w')
@@ -28,6 +29,6 b' def runcmd():'
     dispatch.dispatch(dispatch.request(['version', '-q'], ui_))
 
 runcmd()
-print "colored? " + str(issubclass(ui_.__class__, color.colorui))
+print("colored? " + str(issubclass(ui_.__class__, color.colorui)))
 runcmd()
-print "colored? " + str(issubclass(ui_.__class__, color.colorui))
+print("colored? " + str(issubclass(ui_.__class__, color.colorui)))