prompt: teach read_prompt_incremental() to allow empty input
tree59b6a0195d3f8ff799babea7d98dc59e3bfdf004
-rw-r--r-- 378 .gitignore
-rw-r--r-- 471 .travis.yml
-rw-r--r-- 18092 COPYING
-rw-r--r-- 4944 INSTALL.adoc
-rw-r--r-- 11349 Makefile
-rw-r--r-- 36404 NEWS.adoc
-rw-r--r-- 1618 README.adoc
-rw-r--r-- 2408 acinclude.m4
-rwxr-xr-x 498 autogen.sh
drwxr-xr-x - compat
-rw-r--r-- 746 config.make.in
-rw-r--r-- 1371 configure.ac
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - include
drwxr-xr-x - src
drwxr-xr-x - test
-rw-r--r-- 15525 tigrc
drwxr-xr-x - tools