input/TextInputStream: ReadLine() throws exception on error

src/input/TextInputStream.cxx

@@ -59,14 +59,7 @@ TextInputStream::ReadLine()
 		   character */
 		--dest.size;
 
-		size_t nbytes;
+		size_t nbytes = is->LockRead(dest.data, dest.size);
-
-		try {
-			nbytes = is->LockRead(dest.data, dest.size);
-		} catch (...) {
-			LogError(std::current_exception());
-			return nullptr;
-		}
 
 		buffer.Append(nbytes);
 

src/input/TextInputStream.hxx

@@ -47,7 +47,9 @@ public:
 	/**
 	 * Reads the next line from the stream with newline character stripped.
 	 *
-	 * @return a pointer to the line, or nullptr on end-of-file or error
+	 * Throws on error.
+	 *
+	 * @return a pointer to the line, or nullptr on end-of-file
 	 */
 	char *ReadLine();
 };