Add preliminary support for illumos (illumos).

README.md

@@ -22,3 +22,4 @@ abbiefetch will attempt to gather as much information as possible on systems tha
 | `haiku` | Haiku | | 1.1.0 | Partial | |
 | `windows` | Microsoft Windows | | 1.2.0 | Full | Relies on wmic.exe and systeminfo.exe |
 | `windows/cygwin` | Microsoft Windows | Cygwin | 1.2.0 | Partial | Relies on wmic.exe and systeminfo.exe, issues with machine detection |
+| `illumos` | illumos | | `master` | Preliminary | |

kernel_info.5

@@ -4,3 +4,6 @@ fi
 if [ -n "$(uname -s)" ] && [ -z "$kernel" ]; then
 	kernel="$(uname -s)"
 fi
+if [ "$system_type" = "illumos" ]; then
+	kernel="$(uname -v)"
+fi

system_detection.2

@@ -41,3 +41,6 @@ if [ "$?" -eq 0 ] && [ "$system_type" = "unknown" ]; then
 		subtype="cygwin"
 	fi
 fi
+if [ "$(uname -o)" = "illumos" ] && [ "$system_type" = "unknown" ]; then
+	system_type="illumos"
+fi