Use printf rather than echo -n.

On AIX, there is no -n option to the system's echo.  Instead,
it needs the '\c' control character.  We could replace
  echo -n "foo"
with
  echo -e "foo\c"
but printf is recommended by most man pages.  Tested on AIX
5.3, Solaris 8, and Debian.

[jc: futureproofed two instances that uses variable with '%s'
 so later feeding different messages would not break things too
 easily; others are emitting literal so whoever changes the
 literal ought to notice more easily so they are safe.]

Signed-off-by: E. Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>

git-am.sh

@@ -312,7 +312,7 @@ do
 		echo "--------------------------"
 		cat "$dotest/final-commit"
 		echo "--------------------------"
-		echo -n "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
+		printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 		read reply
 		case "$reply" in
 		[yY]*) action=yes ;;

git-applypatch.sh

@@ -83,7 +83,7 @@ while [ "$interactive" = yes ]; do
 	echo "--------------------------"
 	cat "$final"
 	echo "--------------------------"
-	echo -n "Apply? [y]es/[n]o/[e]dit/[a]ccept all "
+	printf "Apply? [y]es/[n]o/[e]dit/[a]ccept all "
 	read reply
 	case "$reply" in
 		y|Y) interactive=no;;

git-bisect.sh

@@ -67,7 +67,7 @@ bisect_start() {
 	rm -rf "$GIT_DIR/refs/bisect/"
 	mkdir "$GIT_DIR/refs/bisect"
 	{
-	    echo -n "git-bisect start"
+	    printf "git-bisect start"
 	    sq "$@"
 	} >"$GIT_DIR/BISECT_LOG"
 	sq "$@" >"$GIT_DIR/BISECT_NAMES"

git-status.sh

@@ -13,7 +13,7 @@ report () {
   trailer=""
   while read status name newname
   do
-    echo -n "$header"
+    printf '%s' "$header"
     header=""
     trailer="#
 "
@@ -27,7 +27,7 @@ report () {
     U ) echo "#	unmerged: $name";;
     esac
   done
-  echo -n "$trailer"
+  printf '%s' "$trailer"
   [ "$header" ]
 }