Fix Ubuntu 19.10 detection

public/detect_linux.sh

@@ -10,7 +10,7 @@ resetDistVer() {
 
 if [ -f /etc/centos-release ]; then
   . /etc/os-release
-  if [ "$VERSION_ID" == "7" ]; then
+  if [ "$VERSION_ID" = "7" ]; then
     DISTNAME=centos
     DISTVER=7
   else
@@ -18,13 +18,13 @@ if [ -f /etc/centos-release ]; then
   fi
 elif [ -f /etc/fedora-release ]; then
   . /etc/os-release
-  if [ "$VERSION_ID" == "30" ]; then
+  if [ "$VERSION_ID" = "30" ]; then
     DISTNAME=fedora
     DISTVER=30
-  elif [ "$VERSION_ID" == "29" ]; then
+  elif [ "$VERSION_ID" = "29" ]; then
     DISTNAME=fedora
     DISTVER=29
-  elif [ "$VERSION_ID" == "28" ]; then
+  elif [ "$VERSION_ID" = "28" ]; then
     DISTNAME=fedora
     DISTVER=28
   else
@@ -54,6 +54,8 @@ elif [ -f /etc/lsb-release ]; then
     else
       resetDistVer
     fi
+  elif [ "$DISTVER" = "19.10" ]; then
+    DISTVER=19.04
   fi
 elif [ -f /etc/debian_version ]; then
   DISTNAME=debian
@@ -65,25 +67,25 @@ elif [ -f /etc/debian_version ]; then
   fi
 fi  
 
-if [ "$DISTNAME" == "unknown" ]; then
+if [ "$DISTNAME" = "unknown" ]; then
   if [ -f /etc/os-release ]; then
     . /etc/os-release
-    if [ "$ID" == "arch" ]; then
+    if [ "$ID" = "arch" ]; then
       DISTNAME=arch
-    elif [ "$ID" == "antergos" ] || [ "$ID" == "manjaro" ]; then
+    elif [ "$ID" = "antergos" ] || [ "$ID" = "manjaro" ]; then
       DISTNAME=ubuntu
       DISTVER=18.10
-    elif [ "$ID" == "opensuse-leap" ]; then
-      if [ "$VERSION_ID" == "15.0" ]; then
+    elif [ "$ID" = "opensuse-leap" ]; then
+      if [ "$VERSION_ID" = "15.0" ]; then
         DISTNAME=opensuse
         DISTVER=15
-      elif [ "$VERSION_ID" == "15.1" ]; then
+      elif [ "$VERSION_ID" = "15.1" ]; then
         DISTNAME=opensuse
         DISTVER=15.1
       else
         resetDistVer
       fi
-    elif [ "$ID" == "opensuse-tumbleweed" ]; then
+    elif [ "$ID" = "opensuse-tumbleweed" ]; then
       DISTNAME=tumbleweed
       DISTVER=
     else