ash: use pgetc_eatbnl() in more places, take 3

Adding previously skipped "readtoken1(pgetc_eatbnl(), syntax_type..." change
from upstream commit:

    Date:   Thu Mar 8 08:37:11 2018 +0100
    parser: use pgetc_eatbnl() in more places

    dash has a pgetc_eatbnl function in parser.c which skips any
    backslash-newline combinations. It's not used everywhere it could be.
    There is also some duplicated backslash-newline handling elsewhere in
    parser.c. Replace most of the calls to pgetc() with calls to
    pgetc_eatbnl() and remove the duplicated backslash-newline handling.

Testcase:
	PS1='\
	:::'
should result in ::: prompt, not <newline>::: prompt

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index cf62fdf75..f1c21188e 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -13388,7 +13388,7 @@ expandstr(const char *ps, int syntax_type)
          * PS1='$(date "+%H:%M:%S) > '
          */
         exception_handler = &jmploc;
-        readtoken1(pgetc(), syntax_type, FAKEEOFMARK, 0);
+        readtoken1(pgetc_eatbnl(), syntax_type, FAKEEOFMARK, 0);
 
         n.narg.type = NARG;
         n.narg.next = NULL;