Patch #1592072: fix docs for return value of PyErr_CheckSignals.
(backport from rev. 52666)
diff --git a/Doc/api/exceptions.tex b/Doc/api/exceptions.tex
index 057c1da..2dabeee 100644
--- a/Doc/api/exceptions.tex
+++ b/Doc/api/exceptions.tex
@@ -328,7 +328,7 @@
default effect for \constant{SIGINT}\ttindex{SIGINT} is to raise the
\withsubitem{(built-in exception)}{\ttindex{KeyboardInterrupt}}
\exception{KeyboardInterrupt} exception. If an exception is raised
- the error indicator is set and the function returns \code{1};
+ the error indicator is set and the function returns \code{-1};
otherwise the function returns \code{0}. The error indicator may or
may not be cleared if it was previously set.
\end{cfuncdesc}