Aligned verbose message output of tasks with normal task output.

I.e. removed the colon after the ITEM#. Updated tasks are now listed like the 'todo.sh ls' command does, e.g.
    42 smell the roses
This is in preparation to eventually use a function factored out from _list() for the verbose task output, which would enable coloring in the verbose message and thus align the verbose message output even more with the normal task output.

tests/t1100-replace.sh

@@ -19,9 +19,9 @@ EOF
 
 test_todo_session 'basic replace' <<EOF
 >>> todo.sh replace 1 "smell the cows"
-1: notice the daisies
+1 notice the daisies
 TODO: Replaced task with:
-1: smell the cows
+1 smell the cows
 
 >>> todo.sh list
 1 smell the cows
@@ -29,9 +29,9 @@ TODO: Replaced task with:
 TODO: 1 of 1 tasks shown
 
 >>> todo.sh replace 1 smell the roses
-1: smell the cows
+1 smell the cows
 TODO: Replaced task with:
-1: smell the roses
+1 smell the roses
 
 >>> todo.sh list
 1 smell the roses
@@ -47,42 +47,42 @@ chase the chickens
 EOF
 test_todo_session 'replace in multi-item file' <<EOF
 >>> todo.sh replace 1 smell the cheese
-1: smell the cows
+1 smell the cows
 TODO: Replaced task with:
-1: smell the cheese
+1 smell the cheese
 
 >>> todo.sh replace 3 jump on hay
-3: thrash some hay
+3 thrash some hay
 TODO: Replaced task with:
-3: jump on hay
+3 jump on hay
 
 >>> todo.sh replace 4 collect the eggs
-4: chase the chickens
+4 chase the chickens
 TODO: Replaced task with:
-4: collect the eggs
+4 collect the eggs
 EOF
 
 test_todo_session 'replace with priority' <<EOF
 >>> todo.sh pri 4 a
-4: (A) collect the eggs
+4 (A) collect the eggs
 TODO: 4 prioritized (A).
 
 >>> todo.sh replace 4 "collect the bread"
-4: (A) collect the eggs
+4 (A) collect the eggs
 TODO: Replaced task with:
-4: (A) collect the bread
+4 (A) collect the bread
 
 >>> todo.sh replace 4 collect the eggs
-4: (A) collect the bread
+4 (A) collect the bread
 TODO: Replaced task with:
-4: (A) collect the eggs
+4 (A) collect the eggs
 EOF
 
 test_todo_session 'replace with &' << EOF
 >>> todo.sh replace 3 "thrash the hay & thresh the wheat"
-3: jump on hay
+3 jump on hay
 TODO: Replaced task with:
-3: thrash the hay & thresh the wheat
+3 thrash the hay & thresh the wheat
 EOF
 
 test_todo_session 'replace error' << EOF
@@ -94,41 +94,41 @@ EOF
 cat /dev/null > todo.txt
 test_todo_session 'replace handling prepended date on add' <<EOF
 >>> todo.sh -t add "new task"
-1: 2009-02-13 new task
+1 2009-02-13 new task
 TODO: 1 added.
 
 >>> todo.sh replace 1 this is just a new one
-1: 2009-02-13 new task
+1 2009-02-13 new task
 TODO: Replaced task with:
-1: 2009-02-13 this is just a new one
+1 2009-02-13 this is just a new one
 
 >>> todo.sh replace 1 2010-07-04 this also has a new date
-1: 2009-02-13 this is just a new one
+1 2009-02-13 this is just a new one
 TODO: Replaced task with:
-1: 2010-07-04 this also has a new date
+1 2010-07-04 this also has a new date
 EOF
 
 cat /dev/null > todo.txt
 test_todo_session 'replace handling priority and prepended date on add' <<EOF
 >>> todo.sh -t add "new task"
-1: 2009-02-13 new task
+1 2009-02-13 new task
 TODO: 1 added.
 
 >>> todo.sh pri 1 A
-1: (A) 2009-02-13 new task
+1 (A) 2009-02-13 new task
 TODO: 1 prioritized (A).
 
 >>> todo.sh replace 1 this is just a new one
-1: (A) 2009-02-13 new task
+1 (A) 2009-02-13 new task
 TODO: Replaced task with:
-1: (A) 2009-02-13 this is just a new one
+1 (A) 2009-02-13 this is just a new one
 EOF
 
 test_todo_session 'replace with prepended date replaces existing date' <<EOF
 >>> todo.sh replace 1 2010-07-04 this also has a new date
-1: (A) 2009-02-13 this is just a new one
+1 (A) 2009-02-13 this is just a new one
 TODO: Replaced task with:
-1: (A) 2010-07-04 this also has a new date
+1 (A) 2010-07-04 this also has a new date
 EOF
 
 test_done