Remove useless return values and checks.

* stream.c (vformat_align_pre, vformat_align_post): Change to void
return.  Do not check return value of put_char.
(vformat_num, vformat_str): Change to void return. Do not check return
value of vformat_align_pre, vformat_aign_post or put_char.
(vformat): Do not check return value of vformat_str or vformat_num.
nilout exit point no longer needed.
(put_string): Do not intercept return value of ops->put_string.
Return t.
(put_char): Do not intercept return value of ops->put_char.
Do not check return value of put_indent. Return t.

* txr.1: Document t return of put-char, put-byte and put-string.

1 files changed, 5 insertions, 0 deletions

diff --git a/txr.1 b/txr.1
index 1975177c..327e4947 100644
--- a/txr.1
+++ b/txr.1
@@ -27671,6 +27671,11 @@ if
 supports a byte write operation. The byte
 value is specified as an integer value in the range 0 to 255.
 
+All these runctions return
+.codn t .
+On failure, they do not return, but throw exceptions of type
+.codn file-error .
+
 .coNP Functions @ put-strings and @ put-lines
 .synb
 .mets (put-strings < sequence <> [ stream ]])