tests: make it clear what happen when no response entered

Differential Revision: https://phab.mercurial-scm.org/D8620

tests/run-tests.py

@@ -2260,7 +2260,7 b' class TestResult(unittest._TextTestResul'
                         'changes)'
                     )
                 else:
-                    self.stream.write('Accept this change? [n] ')
+                    self.stream.write('Accept this change? [y/N] ')
                     self.stream.flush()
                     answer = sys.stdin.readline().strip()
                     if answer.lower() in ('y', 'yes'):

tests/test-run-tests.t

@@ -747,7 +747,7 b' Refuse the fix'
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
-  Accept this change? [n] 
+  Accept this change? [y/N] 
   ERROR: test-failure.t output changed
   !.
   Failed test-failure.t: output changed
@@ -772,7 +772,7 b' Interactive with custom view'
   $ echo 'n' | rt -i --view echo
   running 2 tests using 1 parallel processes 
   $TESTTMP/test-failure.t $TESTTMP/test-failure.t.err
-  Accept this change? [n]* (glob)
+  Accept this change? [y/N]* (glob)
   ERROR: test-failure.t output changed
   !.
   Failed test-failure.t: output changed
@@ -823,7 +823,7 b' Accept the fix'
   +  saved backup bundle to $TESTTMP/foo.hg
      $ echo 'saved backup bundle to $TESTTMP/foo.hg'
      saved backup bundle to $TESTTMP/*.hg (glob)
-  Accept this change? [n] ..
+  Accept this change? [y/N] ..
   # Ran 2 tests, 0 skipped, 0 failed.
 
   $ sed -e 's,(glob)$,&<,g' test-failure.t
@@ -900,7 +900,7 b' When "#testcases" is used in .t files'
    #endif
    #if b
      $ echo 2
-  Accept this change? [n] .
+  Accept this change? [y/N] .
   --- $TESTTMP/test-cases.t
   +++ $TESTTMP/test-cases.t#b.err
   @@ -5,4 +5,5 @@
@@ -909,7 +909,7 b' When "#testcases" is used in .t files'
      $ echo 2
   +  2
    #endif
-  Accept this change? [n] .
+  Accept this change? [y/N] .
   # Ran 2 tests, 0 skipped, 0 failed.
 
   $ cat test-cases.t
@@ -1285,7 +1285,7 b' Test that failed test accepted through i'
    This is a noop statement so that
    this test is still more bytes than success.
    pad pad pad pad............................................................
-  Accept this change? [n] ..s
+  Accept this change? [y/N] ..s
   Skipped test-skip.t: missing feature: nail clipper
   # Ran 2 tests, 1 skipped, 0 failed.