[CWEB] 'ungetc' no longer used.

git-svn-id: svn://tug.org/texlive/trunk/Build/source@67703 c570f23f-e606-0410-a88d-b1316a301751
TeX-Live · Jul 22, 2023 · f5d7036 · f5d7036
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diff --git a/texk/web2c/cwebdir/comm-mac.ch b/texk/web2c/cwebdir/comm-mac.ch
@@ -11,7 +11,7 @@ No changes to CTANGLE or CWEAVE are needed.
 
 @x section 23: Make input_ln accept \n, \r, \n\r, or \r\n as line endings
 @ In the unlikely event that your standard I/O library does not
-support |feof|, |getc|, and |ungetc| you may have to change things here.
+support |feof| and |getc| you may have to change things here.
 @^system dependencies@>
 
 @c

diff --git a/texk/web2c/cwebdir/common.w b/texk/web2c/cwebdir/common.w
@@ -150,7 +150,7 @@ char *loc=buffer; /* points to the next character to be read from the buffer */
 char *limit=buffer; /* points to the last character in the buffer */
 
 @ In the unlikely event that your standard I/O library does not
-support |feof|, |getc|, and |ungetc| you may have to change things here.
+support |feof| and |getc| you may have to change things here.
 @^system dependencies@>
 
 @c