feat(ui): improve the memory check output (#511)

* feat(ui): improve the memory check output

* feat(test): update memory check output tests

nodebuilder

@@ -639,7 +639,7 @@ Darwin) ;; #TODO: Add macOS memory check
   swap_memory_free_in_mib="$(get_memory_metric_in_mib 'SwapFree')"
   memory_total_in_mib=$((physical_memory_total_in_mib + swap_memory_total_in_mib))
   memory_free_in_mib=$((physical_memory_free_in_mib + swap_memory_free_in_mib))
-  printf '%0.1f GiB free of %0.1f GiB.\n' \
+  printf '%0.1f of %0.1f GiB free.\n' \
     "$(awk -v mem_free_mib="${memory_free_in_mib}" -v mib_gib_factor="${MIB_TO_GIB}" 'BEGIN{printf "%f\n", mem_free_mib / mib_gib_factor}')" \
     "$(awk -v mem_total_mib="${memory_total_in_mib}" -v mib_gib_factor="${MIB_TO_GIB}" 'BEGIN{printf "%f\n", mem_total_mib / mib_gib_factor}')"
 

test/test_nodebuilder

@@ -63,7 +63,7 @@ if [ "$(uname -s)" != "Darwin" ]; then
     "Performing a system upgrade... ok.$" \
     "Checking for dependencies... ok.$" \
     "Creating application shortcuts... ok.$" \
-    "Checking the memory on your system... [0-9]+\.[0-9] GiB free of [0-9]+\.[0-9] GiB.$"; do
+    "Checking the memory on your system... [0-9]+\.[0-9] of [0-9]+\.[0-9] GiB free.$"; do
     if ! grep -Eq "${message}" output_stdout.txt > /dev/null 2>&1; then
       printf '%s\n' "FAILURE: Expected message ${message} not found."
       exit 1
@@ -72,12 +72,12 @@ if [ "$(uname -s)" != "Darwin" ]; then
 fi
 
 for message in \
-  "apt-utils 1" \
+  "apt-utils" \
   "libzmq" \
   "BDB" \
   "Berkeley DB" \
-  "Checking the memory on your system... 0 GiB free of 0 GiB." \
-  "Checking the memory on your system... 0.0 GiB free of 0.0 GiB." \
+  "Checking the memory on your system... 0 GiB of 0 GiB free." \
+  "Checking the memory on your system... 0.0 GiB of 0.0 GiB free." \
   "Checking free space in home directory... 0 GiB." \
   "Sync progress:      [0-9]+\.[0-9]{4} %" \
   "Disk free space:    (0 G|[0-9]+ M)iB"; do