Updated gdb to 8.0.1, fixed arch install

Author: raildex1

pwndbg/install-root-archlinux

@@ -2,5 +2,10 @@
 
 # install system wide, s.t. pwndbg works also with system qemu
 pacman -Syu --noconfirm python-psutil python2-psutil \
-    capstone python-capstone python2-capstone\
-    unicorn python-unicorn python2-unicorn 
+    capstone python-capstone python2-capstone \
+    unicorn python-unicorn python2-unicorn \
+    python-future python2-future \
+    python-ptrace python2-ptrace \
+    python-six  python2-six \
+    python-pyelftools python2-pyelftools \
+    python-pycparser python2-pycparser